AbsListView.java revision 8390fab6f4c305e89e1eb32bbf82c74a55f79424
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 20499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 26c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 315fade8c69aef621312232ef0647502d7a63990b9Romain Guyimport android.os.Trace; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 33f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.text.InputType; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viveretteimport android.util.MathUtils; 40539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 42079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 43f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 44637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 51f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 61c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 62a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 6376769ae02e713f50816ee67ff618b748d95050a8Alan Viveretteimport android.view.accessibility.AccessibilityNodeInfo.CollectionInfo; 64441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viveretteimport android.view.animation.AccelerateDecelerateInterpolator; 65441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viveretteimport android.view.animation.AnimationUtils; 660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 69f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 70f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 71b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 72f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 73f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 74b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 76a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 79335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 84d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 85d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 86d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 97f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 101499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 102499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 105539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 106539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 113de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 122de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we just received the touch event and we are waiting to see if the it is a tap or a 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 23239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 23339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 23439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 23539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 261f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 262f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 26314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 26414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 26514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 266f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 268f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 269f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 288499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 289499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 294539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2982148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2992148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 310079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 312079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 313079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 314079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3700211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller mPositionScroller; 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4450a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 45339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 45439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 45539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 51114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 51214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 51314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 51414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 51514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 548d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private CheckForTap mPendingCheckForTap; 5490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 561d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 562d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 563d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 564d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 565d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private FastScroller mFastScroll; 5918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 5928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 5938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Temporary holder for fast scroller style until a FastScroller object 5948636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * is created. 5958636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 5968636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private int mFastScrollStyle; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 598d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 600d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 6041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 6056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6066dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 607161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 6084296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 6094296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 61021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 6114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61496d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollOffset = new int[2]; 61596d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollConsumed = new int[2]; 61696d62aff0f97557bc15de98e145d9345288d060cAdam Powell 61724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 61824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 61924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6326dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 64989935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 65489935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 676da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 677da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 678da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 679da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 680da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 68107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 68207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 68307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 684c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 685c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 686c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 687c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 688c1d7e770e123adfa992d013fa294693d077cbc78alanv 6894e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6904e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6914e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 692da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 693ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 694ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 695ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 696ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 697ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6980b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6990b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 7000b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 7010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 7020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 703e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 704e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 705e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 706e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 707e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 708e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 709e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 710e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 711462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette * Whether the view is in the process of detaching from its window. 712462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette */ 713462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette private boolean mIsDetaching; 714462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 715462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette /** 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 74643943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee * @param scrollState The current scroll state. One of 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 764e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 765e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 766e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 767e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 768e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 769e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 771e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 772e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 773e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 774e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 775e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 776e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 777e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 778e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 779e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 78539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 788287c0361877057e50190cc0d7224e5bb2a7c4955Adam Powell initializeScrollbarsInternal(a); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 796617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 797617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 798617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 799617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 800617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 801617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 80439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 80539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 806617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 807617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette attrs, com.android.internal.R.styleable.AbsListView, defStyleAttr, defStyleRes); 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8368636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette int fastScrollStyle = a.getResourceId(R.styleable.AbsListView_fastScrollStyle, 0); 8378636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette setFastScrollStyle(fastScrollStyle); 8388636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 84320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 84420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 850d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 851df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 852d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 853d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 854d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 856d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8574296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8584296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8594296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8604296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 864d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 865d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 87289935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 87389935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 882d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 888539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 889539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 89114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 96282ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 96382ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 96482ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 98614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1025a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1026a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1027a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1028a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1029a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1030a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 103914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 107114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1090bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10985bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10995bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 11015bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 110214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 11075bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 11145bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1115bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 111729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 11195bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11205bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1121f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 112514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 113429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 113529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 113629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1139bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1140bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1141bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 114729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 114829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 114929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 115029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 115129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 115229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 115329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 115429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 115529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 115629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 115729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 115829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 115929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 116029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 116129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 116229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 116329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 116429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 116829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1194f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1197f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12282bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12292bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12314ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12324ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 123686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 123786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 123986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 124086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 124186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 124286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 124386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 124486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 124586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 124886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 125039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 125139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 125239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 125339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 125439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 125539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 125739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 125839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 125939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 126039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 126139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 126239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 126339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1264447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 126539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1266447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 126739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 12688636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12698636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(enabled); 127039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 12718636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll = new FastScroller(this, mFastScrollStyle); 12728636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(true); 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 127426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1275b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 127626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 12778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.updateLayout(); 12798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 12828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 12838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Specifies the style of the fast scroller decorations. 12848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * 12858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @param styleResId style resource containing fast scroller properties 12868636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @see android.R.styleable#FastScroll 12878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 12888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette public void setFastScrollStyle(int styleResId) { 12898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 12908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScrollStyle = styleResId; 12918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } else { 12928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setStyle(styleResId); 129326bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 129786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 129886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 129920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 130086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 130186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 130286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 130386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 130420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 130586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 130686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 130720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 130820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 130920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 131039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 131139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 131239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 131339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 131439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 131539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 131739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 131939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 132039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 132139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 132239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 132339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 132439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 132539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 132739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 13328636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13338636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setAlwaysShow(alwaysShow); 133420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 133839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 133939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 134039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 134139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 134220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 134586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 134620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 134786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 134820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 134920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 135020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 13518636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1352b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1353b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13548636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled() && mFastScroll.isAlwaysShowEnabled(); 1355b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 135620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 135820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 135920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 13608636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.isEnabled()) { 13618636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return Math.max(super.getVerticalScrollbarWidth(), mFastScroll.getWidth()); 136220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 136420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 136620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 136786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 136886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1375b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1376b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled(); 1378b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 138120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 138220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 138320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 13848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(position); 138620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 138926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 139026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 139126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 13928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollBarStyle(style); 139426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13980ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1403b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 14170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14548636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 14558636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onScroll(mFirstPosition, getChildCount(), mItemCount); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14600a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1463a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14664e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14674e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14684e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1469d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1470d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1471d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1472d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14739c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14744e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1475d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1476d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14774e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14784e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14794e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14804e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14814e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14828a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14838a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14848a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14858a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14868a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14878a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14888a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14898a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14908a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14918a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1492fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1493fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1494fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 149580943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1496fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1497fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1498fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 149980943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1500fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1501a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1502a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1503a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 150476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette int getSelectionModeForAccessibility() { 150576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette final int choiceMode = getChoiceMode(); 150676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette switch (choiceMode) { 150776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_NONE: 150876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 150976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_SINGLE: 151076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_SINGLE; 151176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE: 151276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE_MODAL: 151376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_MULTIPLE; 151476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette default: 151576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 151676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette 1519a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1520a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 152148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 152248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 152348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1524a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1526fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1528a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1529a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1530a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1531a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1532a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1533fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1534a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1535a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1536a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1537a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1538a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1539a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 154048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15418a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15428a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15435b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 15445b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 15455b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 15465b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 15475b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 15485b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15495b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 15505b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15515b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15525b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15535b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15545b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15555b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15565b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15575b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15585b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16236bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16358eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable( 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1679a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16802614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1681f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 168214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1702a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 17032614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 170543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 170643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 170714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 170843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 170943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 171043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 171143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 171214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1713f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1725a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17262614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1727f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 172843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 172943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 173043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 173143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 173243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 173314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1767f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1777e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1778e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1779e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1780e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1781e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1782e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1783e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1784e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1785e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1786e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1787e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1788e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1789e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1790e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1791e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 179299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18037becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 18047becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 18057becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 18067becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 18077becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 18087becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 18097becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 18107becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 18117becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 18127becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 181599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 181699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 181799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 181899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 181999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 182099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1840a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18419a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18429a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18439a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18449a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 184514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18469a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18479a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18489a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18499a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18509a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18519a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18522614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1854335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1855335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1856335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1857335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1872e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1881079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1883e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 19002614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 19012614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1902a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1903a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1904a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1905a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1906a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1911d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1912d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 19180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 195831986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1959b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1960b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1961b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1962b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1963b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1964b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1983161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1985e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1991079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 20360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20570b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2060637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20818fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 21018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2115da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2116da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2117da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2118da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2119ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2120da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2121da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2122ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2123da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2124da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2127d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2128d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2129d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2130d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 2134d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2136d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21374b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette final int childCount = getChildCount(); 2138f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2139f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2140f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2141f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2142f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2143f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21440ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 2149732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette 2150732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette // TODO: Move somewhere sane. This doesn't belong in onLayout(). 2151732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette if (mFastScroll != null) { 2152732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette mFastScroll.onItemCountChanged(getChildCount(), mItemCount); 2153732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette } 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2163d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2164d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2165d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2166d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2167d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2168d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2169d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2170d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2176d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2177d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2178d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21825d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21833e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @param focusedView view that holds accessibility focus 21843e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @return direct child that contains accessibility focus, or null if no 21855d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21865d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21873e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette View getAccessibilityFocusedChild(View focusedView) { 21885d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21895d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 21905d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 21915d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 21925d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21935d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21945d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 21955d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21965d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21975d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21985d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 21995d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 22005d565faab21324862fa24490f116424e1b668b1dAlan Viverette 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 230021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 230121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 23024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 230521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 23065fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 23075fade8c69aef621312232ef0647502d7a63990b9Romain Guy 230821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2310595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Check whether we have a transient state view. Attempt to re-bind the 2311595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // data and discard the view if we fail. 2312595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View transientView = mRecycler.getTransientStateView(position); 2313595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transientView != null) { 2314ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final LayoutParams params = (LayoutParams) transientView.getLayoutParams(); 2315ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2316ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If the view type hasn't changed, attempt to re-bind the data. 2317ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (params.viewType == mAdapter.getItemViewType(position)) { 2318ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final View updatedView = mAdapter.getView(position, transientView, this); 2319ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2320ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If we failed to re-bind the data, scrap the obtained view. 2321ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (updatedView != transientView) { 2322e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(updatedView, position); 2323ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette mRecycler.addScrapView(updatedView, position); 2324ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette } 2325595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 2326595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 2327595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Scrap view implies temporary detachment. 2328595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette isScrap[0] = true; 2329595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette return transientView; 2330539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2331539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2332595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View scrapView = mRecycler.getScrapView(position); 2333595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View child = mAdapter.getView(position, scrapView, this); 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2336595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, return scrap to the heap. 2337079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 233821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2339a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 23401e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2341a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2343595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23444213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2345595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mCacheColorHint != 0) { 2346595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setDrawingCacheBackgroundColor(mCacheColorHint); 2347595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23484213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2349595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 2350595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2353e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(child, position); 2354aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2355c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2356c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2357c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2358c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2359b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2360b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2361b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2362c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2363c1d7e770e123adfa992d013fa294693d077cbc78alanv 23645fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23655fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette private void setItemViewLayoutParams(View child, int position) { 2370e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2371e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette LayoutParams lp; 2372e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (vlp == null) { 2373e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateDefaultLayoutParams(); 2374e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else if (!checkLayoutParams(vlp)) { 2375e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateLayoutParams(vlp); 2376e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else { 2377e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) vlp; 2378e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2379e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2380e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (mAdapterHasStableIds) { 2381e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.itemId = mAdapter.getItemId(position); 2382e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2383e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.viewType = mAdapter.getItemViewType(position); 2384e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette child.setLayoutParams(lp); 2385e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2386e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2387c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2388c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 238950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 239050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 239150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 239250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 239350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 239450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 239550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 239650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 239750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 239850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 239950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 240050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2401c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2402c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2403c1d7e770e123adfa992d013fa294693d077cbc78alanv 2404c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24055b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2406c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2407c1d7e770e123adfa992d013fa294693d077cbc78alanv 2408c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2409c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2410fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2411fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2412fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2413fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2414c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24159c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2416c1d7e770e123adfa992d013fa294693d077cbc78alanv 24179c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 24189c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2419c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2420c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2421c1d7e770e123adfa992d013fa294693d077cbc78alanv 24229c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 24239c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2424fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2425fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2426fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2427c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2428c1d7e770e123adfa992d013fa294693d077cbc78alanv 2429c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 24309c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 24319c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 24329c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 24339c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24349c3e0e68260fe50456996d75304b73054cbde94aalanv } 24359c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2436fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 24379c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 24389c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 24399c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24409c3e0e68260fe50456996d75304b73054cbde94aalanv } 24419c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2442fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2443fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2444c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2445c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2446fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2447fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2448fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2449c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2450c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2451fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2452c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2453c1d7e770e123adfa992d013fa294693d077cbc78alanv 2454fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2455c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2456c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2457c1d7e770e123adfa992d013fa294693d077cbc78alanv 24585b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24595b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24605b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24615b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24625b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24635b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24645b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24655b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24665b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24675b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24685b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24695b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24705b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24715b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24725b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 24805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 24815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 24825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 24835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 24845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 24875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 24885b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 24895b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24905b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24915b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 24925b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24935b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24945b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24955b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24965b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2497de399397947c5379c61a1003c017b96accbbf545Alan Viverette /** 24984d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette * Positions the selector in a way that mimics keyboard focus. 2499de399397947c5379c61a1003c017b96accbbf545Alan Viverette */ 2500de399397947c5379c61a1003c017b96accbbf545Alan Viverette void positionSelectorLikeFocus(int position, View sel) { 25014d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // If we're changing position, update the visibility since the selector 25024d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // is technically being detached from the previous selection. 25034d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final Drawable selector = mSelector; 25044d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final boolean manageState = selector != null && mSelectorPosition != position 25054d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette && position != INVALID_POSITION; 25064d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (manageState) { 25074d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setVisible(false, false); 25084d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette } 25094d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 2510de399397947c5379c61a1003c017b96accbbf545Alan Viverette positionSelector(position, sel); 2511de399397947c5379c61a1003c017b96accbbf545Alan Viverette 25124d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (manageState) { 2513de399397947c5379c61a1003c017b96accbbf545Alan Viverette final Rect bounds = mSelectorRect; 2514de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float x = bounds.exactCenterX(); 2515de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float y = bounds.exactCenterY(); 25164d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setVisible(getVisibility() == VISIBLE, false); 2517c80ad99a33ee49d0bac994c1749ff24d243c3862Alan Viverette selector.setHotspot(x, y); 2518de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2519de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2520de399397947c5379c61a1003c017b96accbbf545Alan Viverette 2521079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2522079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2523079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2524079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2525079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2528e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2529e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2530e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 25314d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 25324d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // Adjust for selection padding. 25334d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.left -= mSelectionLeftPadding; 25344d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.top -= mSelectionTopPadding; 25354d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.right += mSelectionRightPadding; 25364d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.bottom += mSelectionBottomPadding; 25374d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 25384d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // Update the selector drawable. 25394d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final Drawable selector = mSelector; 25404d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (selector != null) { 25414d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setBounds(selectorRect); 25424d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette } 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2547a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2548079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2549079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 258520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 258620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 258720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 258820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 258920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 259020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 259120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 259220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 259320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 259420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 259520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 259620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 259720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 259820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 259920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 260020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 260120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 260220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 260320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 260420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 260520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 260620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 260720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 260820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 260920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2615d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 26168636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 26178636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSizeChanged(w, h, oldw, oldh); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 264474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2648079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 26768eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable(resID)); 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2692079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2710df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2711df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2712df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2713df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2717079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2721ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2722ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2723ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2724ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2731df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2732df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2752079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2753079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2754079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2755079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2756079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2757079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2758079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2759079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2761079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2765079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2808e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2809e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2810e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2811e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2812e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2813e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28180e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 28190e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 28200e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 282382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 282482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 282582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 28266a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 28276a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 28286a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 28296a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 28306a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 283182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2838462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = true; 2839462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 28401f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 28411f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 28421f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 284321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 284421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 284521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28470e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 28480e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 28499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 28500e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 285282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2853bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 285482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 285582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 285682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 28591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 28601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 28611cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28631cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 28641cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 28651cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 28661cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2867d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2868d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2869d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2870d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2871d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2872d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 28734032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2874d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2875d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2876d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2877d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2878d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2879d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2880d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2881d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2882d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2883d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2884d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2885d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2886a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2887d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2888462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 2889462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = false; 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2900670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2901670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2902670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2903670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2904670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 29054032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 29064032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 29074032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 29100fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2914670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 292397566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29473a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 29483a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 29493a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 29508636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 29518636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(getVerticalScrollbarPosition()); 29523a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29533a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29543a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29701487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 29711487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 29721487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 29731487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 29741487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 29751487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29761487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 29771487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 29781487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29791487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 29801487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 29811487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29821487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 29831487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 29841487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29851487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29861487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 29940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 300029219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3013005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 3014005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 3015005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 3016005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 3017005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 30187890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 30197890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 30207890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 30217890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 30227890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 30237890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 30298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 30538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30768350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 3078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 3079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 30801e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 30811e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 3082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 30831e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 3084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 3085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 3086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3108fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 3109fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 3110fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 3111fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 3112fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 3113fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 3114fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 3115fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 3116fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 3117fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3118fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3119fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3120fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3121fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3122fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3147df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3148df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3149df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3150df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3151df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 315324d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3154dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3155dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3156dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3157df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3158dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3160dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 316245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 316345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 316445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 316545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3224d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private final class CheckForTap implements Runnable { 3225d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float x; 3226d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float y; 3227d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 32288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3239079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3240079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3241e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 3247d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette final Drawable d = mSelector.getCurrent(); 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32558390fab6f4c305e89e1eb32bbf82c74a55f79424Alan Viverette mSelector.setHotspot(x, y); 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3275c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private boolean startScrollIfNeeded(int x, int y, MotionEvent vtev) { 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 328196d62aff0f97557bc15de98e145d9345288d060cAdam Powell if ((overscroll || distance > mTouchSlop) && 328296d62aff0f97557bc15de98e145d9345288d060cAdam Powell (getNestedScrollAxes() & SCROLL_AXIS_VERTICAL) == 0) { 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 328978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 329078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 329374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 330013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 330113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 330213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 330313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 3304c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded(x, y, vtev); 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3311c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private void scrollIfNeeded(int x, int y, MotionEvent vtev) { 331296d62aff0f97557bc15de98e145d9345288d060cAdam Powell int rawDeltaY = y - mMotionY; 331343943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollOffsetCorrection = 0; 331443943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollConsumedCorrection = 0; 331543943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee if (mLastY == Integer.MIN_VALUE) { 331643943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee rawDeltaY -= mMotionCorrection; 331743943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee } 331896d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (dispatchNestedPreScroll(0, rawDeltaY, mScrollConsumed, mScrollOffset)) { 331996d62aff0f97557bc15de98e145d9345288d060cAdam Powell rawDeltaY -= mScrollConsumed[1]; 332043943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee scrollOffsetCorrection -= mScrollOffset[1]; 332143943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee scrollConsumedCorrection -= mScrollConsumed[1]; 332296d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (vtev != null) { 332396d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.offsetLocation(0, mScrollOffset[1]); 332496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 332596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 332643943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee final int deltaY = rawDeltaY; 332743943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int incrementalDeltaY = 3328e2e19391d422b6abb6abccb0e412debdf4a67716Yorke Lee mLastY != Integer.MIN_VALUE ? y - mLastY + scrollConsumedCorrection : deltaY; 332996d62aff0f97557bc15de98e145d9345288d060cAdam Powell int lastYCorrection = 0; 333078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 333178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 333278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 333378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 333478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 333578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 333678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 333978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 334078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 334178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 334278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 334378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 334478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 334578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 334678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 334778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 334878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 334978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 335078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 335178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 335278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 335378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 335678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 335778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 335878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 335978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 336078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 336178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 336278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 336378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 336578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 336678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 336778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 336878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 336978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 337078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 337278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 337378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 337478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 337578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 337678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 337878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 337978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 338078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 338178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 338278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 338378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 338478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 338578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 338678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 338778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 338896d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (dispatchNestedScroll(0, overscroll - incrementalDeltaY, 0, overscroll, 338996d62aff0f97557bc15de98e145d9345288d060cAdam Powell mScrollOffset)) { 339096d62aff0f97557bc15de98e145d9345288d060cAdam Powell lastYCorrection -= mScrollOffset[1]; 339111d0069f9228400943e9932e3286babb2b5f4135Adam Powell if (vtev != null) { 339211d0069f9228400943e9932e3286babb2b5f4135Adam Powell vtev.offsetLocation(0, mScrollOffset[1]); 339311d0069f9228400943e9932e3286babb2b5f4135Adam Powell } 339496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } else { 3395c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell final boolean atOverscrollEdge = overScrollBy(0, overscroll, 3396c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 0, mScrollY, 0, 0, 0, mOverscrollDistance, true); 3397c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 3398c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (atOverscrollEdge && mVelocityTracker != null) { 3399c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell // Don't allow overfling if we're at the edge 3400c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mVelocityTracker.clear(); 340178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 340396d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int overscrollMode = getOverScrollMode(); 340496d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 340596d62aff0f97557bc15de98e145d9345288d060cAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 340696d62aff0f97557bc15de98e145d9345288d060cAdam Powell !contentFits())) { 3407c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (!atOverscrollEdge) { 3408c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mDirection = 0; // Reset when entering overscroll. 3409c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3410c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } 3411c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (incrementalDeltaY > 0) { 34122897a6fdedd23efe96cd373886da78f1f1d18442Adam Powell mEdgeGlowTop.onPull((float) -overscroll / getHeight(), 3413c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 341496d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowBottom.isFinished()) { 341596d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowBottom.onRelease(); 341696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3417c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 3418c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 3419c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } else if (incrementalDeltaY < 0) { 3420c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight(), 3421c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 342296d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowTop.isFinished()) { 342396d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowTop.onRelease(); 342496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3425c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 3426c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 3427c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 342878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343243943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee mMotionY = y + scrollOffsetCorrection; 343378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343443943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee mLastY = y + lastYCorrection + scrollOffsetCorrection; 343578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 343778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 343878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 343978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 344078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 344178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 344278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 344378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 344478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 344578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 344678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 344778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 344878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 344978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 345078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 345178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 345278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 345378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 345478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 345578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 345678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 345778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 345878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 345978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 346078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 346178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 3462c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.onPull((float) overScrollDistance / getHeight(), 3463c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 346478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 346578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 346678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3467c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 3468c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 346978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 3470c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight(), 3471c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 347278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 347378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 347478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3475c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 3476c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 3477c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 347878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 347978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 348078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 348178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 348278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 348378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 34849d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 34859d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 34869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 348778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 348878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 34899d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 34909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 349178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 349278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 349378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 349478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 349578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 349678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 349778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 349878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 349978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 350078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 350178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 350278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 350378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 350478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 350578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 350678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 350778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 350878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 35098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35221e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3523637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35294032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35304032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35314032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 35350fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3545dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3546dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3547dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3548dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3549dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3550dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 35511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 35521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 35531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 35541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 3555462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 355628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 355728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 355828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 355928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 356028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 356128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 356228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 356396d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 356496d62aff0f97557bc15de98e145d9345288d060cAdam Powell 35658636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 35668636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette boolean intercepted = mFastScroll.onTouchEvent(ev); 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 357182f3495b146b267f3786997752cef25310176349Romain Guy 357213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 357396d62aff0f97557bc15de98e145d9345288d060cAdam Powell final MotionEvent vtev = MotionEvent.obtain(ev); 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35758fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 35768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 35778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 35788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 35798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35808fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 358396d62aff0f97557bc15de98e145d9345288d060cAdam Powell onTouchMove(ev, vtev); 35848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35858fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35869d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 35878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 35888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 35898fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35908fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3591e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 35938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 35948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3596e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 35988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 35998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 36008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 36018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 36028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 36038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 36048fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 36058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 36068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 36078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36088fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 36098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3611fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 36128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 36138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 36148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 36158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 36168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 36178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 36188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 36198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 36208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 36218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 36228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 36238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 36248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 36258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 36268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 36278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 36288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 36308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3631fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3632e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 363496d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mVelocityTracker != null) { 363596d62aff0f97557bc15de98e145d9345288d060cAdam Powell mVelocityTracker.addMovement(vtev); 363696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 363796d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.recycle(); 3638e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3639e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3640e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3641e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 36423d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 36433d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 36443d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 36453d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3646e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3647e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3648e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3649e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3650e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3651e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 36523d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 36533d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3654e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3655e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 36563d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3657e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3658e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 36603d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3661e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 36623d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 36633d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 36643d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 36653d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 36663d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 36673d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 36683d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 36693d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 36703d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 36713d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 36723d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3673e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 36743d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3675e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3676e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3677e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3678e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36793d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3680d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.x = ev.getX(); 3681d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.y = ev.getY(); 3682e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3683e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36842585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 36856f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3686e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3687e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 36883d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3689e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 36906f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 36913d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3692e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3693e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3694e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3695e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3696e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36976f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3698b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3699b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 37003d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3701e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3702e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3703e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 370496d62aff0f97557bc15de98e145d9345288d060cAdam Powell private void onTouchMove(MotionEvent ev, MotionEvent vtev) { 3705e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3706e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3707e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3708e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3709e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3710e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3711e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3712e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3713e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3714e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3715e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3716e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 37178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 37188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3719e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 37208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 37218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 37228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 37238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 372474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 3725c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, vtev)) { 372674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 372774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 372874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 372974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 37303d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 37313d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 373274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 373374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 373474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 373574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 373674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 373774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 373874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 373974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 374074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 374174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 37428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 37438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 37448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 3745c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded((int) ev.getX(pointerIndex), y, vtev); 37468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3748e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3750e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3751e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3752e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3753e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3754e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3755e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3756e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 375774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3758e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3759e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3760e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3761e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 376274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 376374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 376474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 376574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 376674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 376774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3768e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 376974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 377074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 377174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 377374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 377574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 377674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3777e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 377874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 377974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 378074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 378174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 378274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 378374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 378474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 378574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 378674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 378774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 378874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 378974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3791c80ad99a33ee49d0bac994c1749ff24d243c3862Alan Viverette mSelector.setHotspot(x, ev.getY()); 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 379374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 379474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 379574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 379674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 379774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 379874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 379974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 380074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 380174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 380274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 3803462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (!mDataChanged && !mIsDetaching && isAttachedToWindow()) { 380474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 380574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 380674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 380774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 380874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 380974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 381074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 381174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 381274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 381374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 381474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 381574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 381674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3819e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3820e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3821e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3822e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3823e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3824e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3825e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3826e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3827e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3828e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3829e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3830e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3831e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3832e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3833e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3834e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3835e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3836e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3837e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3838e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3839e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3840e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3841e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3842e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3843e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3844e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3845e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3846e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3847e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3848e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3849e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3850e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3851e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3852e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3853e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3854e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3855e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3856e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 38576198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 38586198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3859e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3860e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3861e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3862e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3863e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 38646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3867e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3868e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3869e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3871e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3873e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3874e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3875e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3877e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3878e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3879e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3881e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3882e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3883e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3884e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3885e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3888e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3889e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3891e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3893e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3894e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3895e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3898e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3899e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 390074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3901e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3903e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3905e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3906e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3907e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3908e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3910e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3912e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3913e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3914e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 39154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3916e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3918e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3919e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3920e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3921e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3922e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 39234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3924e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 39254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39269bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3927e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3928e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 39299bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3930e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3931e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3932e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3933e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 393474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3935e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3936e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3937e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3938e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 393974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3940e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3943e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3944e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3945e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3946e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3947e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39510a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 39520a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 39530a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 39540a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 39550a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 39560a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 39570a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 396233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 396333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 396433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 396533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 396633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 396733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 396833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 396933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3970275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 397133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 397233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 397333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 397433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 397533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 397633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 397733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 397833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 397933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 398033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 398133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 398296d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 398396d62aff0f97557bc15de98e145d9345288d060cAdam Powell return ((nestedScrollAxes & SCROLL_AXIS_VERTICAL) != 0); 398496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 398596d62aff0f97557bc15de98e145d9345288d060cAdam Powell 398696d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 398796d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScrollAccepted(View child, View target, int axes) { 398896d62aff0f97557bc15de98e145d9345288d060cAdam Powell super.onNestedScrollAccepted(child, target, axes); 398996d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 399096d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 399196d62aff0f97557bc15de98e145d9345288d060cAdam Powell 399296d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 399396d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 399496d62aff0f97557bc15de98e145d9345288d060cAdam Powell int dxUnconsumed, int dyUnconsumed) { 399596d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int motionIndex = getChildCount() / 2; 399696d62aff0f97557bc15de98e145d9345288d060cAdam Powell final View motionView = getChildAt(motionIndex); 399796d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int oldTop = motionView != null ? motionView.getTop() : 0; 399896d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView == null || trackMotionScroll(-dyUnconsumed, -dyUnconsumed)) { 399996d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myUnconsumed = dyUnconsumed; 400096d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myConsumed = 0; 400196d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView != null) { 400296d62aff0f97557bc15de98e145d9345288d060cAdam Powell myConsumed = motionView.getTop() - oldTop; 400396d62aff0f97557bc15de98e145d9345288d060cAdam Powell myUnconsumed -= myConsumed; 400496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 400596d62aff0f97557bc15de98e145d9345288d060cAdam Powell dispatchNestedScroll(0, myConsumed, 0, myUnconsumed, null); 400696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 400796d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 400896d62aff0f97557bc15de98e145d9345288d060cAdam Powell 400996d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 401096d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 401196d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int childCount = getChildCount(); 401296d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!consumed && childCount > 0 && canScrollList((int) velocityY) && 401396d62aff0f97557bc15de98e145d9345288d060cAdam Powell Math.abs(velocityY) > mMinimumVelocity) { 401496d62aff0f97557bc15de98e145d9345288d060cAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 401596d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mFlingRunnable == null) { 401696d62aff0f97557bc15de98e145d9345288d060cAdam Powell mFlingRunnable = new FlingRunnable(); 401796d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 401896d62aff0f97557bc15de98e145d9345288d060cAdam Powell mFlingRunnable.start((int) velocityY); 401996d62aff0f97557bc15de98e145d9345288d060cAdam Powell return true; 402096d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 402196d62aff0f97557bc15de98e145d9345288d060cAdam Powell return dispatchNestedFling(velocityX, velocityY, consumed); 402296d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 402396d62aff0f97557bc15de98e145d9345288d060cAdam Powell 402496d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 4028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 4030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 40319be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell final int width = getWidth(); 4032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 40349be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell canvas.translate(0, edgeY); 4035a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 4036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 4037c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 4038c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 4039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 4043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 40449be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell final int width = getWidth(); 4045637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 4046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40479be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell int edgeX = -width; 40489d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 40499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 4050e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 4051a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 4052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 4053c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 4054c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 4055c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 406207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 406307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 406407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 406507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 406607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 406707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 406807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 406907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 407013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 407113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 407213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 407313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 407413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 407513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 407613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 407713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 407813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 407913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 408013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 408113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 408213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 408313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 408413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 408513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 408613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 408713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 408813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 408913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 409013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 409113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 409213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 409313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 409413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 409513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 409613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 409713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 409813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4100a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 41018636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptHoverEvent(event)) { 4102a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 4103a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4104a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4105a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 4106a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4107a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4108a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 41120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 41131fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 41141fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 41151fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 41161fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4117462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 411828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 411928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 412028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 412128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 412228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 412328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 412428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 41258636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptTouchEvent(ev)) { 41260ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 41294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 413179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 4133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 4135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 41384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 41394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 41404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 414279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 415413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 415513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 415696d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 415779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 41584b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 41594b4f40f84e72579417604143e5f42115769649b8Romain Guy } 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 41662585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 41672585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 41682585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 41692585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 41702585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 41714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 417213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 417313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 4174c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, null)) { 41759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 418213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 41854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 418613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 418896d62aff0f97557bc15de98e145d9345288d060cAdam Powell stopNestedScroll(); 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 41934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 41944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 41954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 42024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 42034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 42044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 42054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 42064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 42074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 42084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 42094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 42104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 42114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 42134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 42144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 42154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 42419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 42429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 42500046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4272d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 42738fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4274d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4275d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4276d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4278d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4279d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4280d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4281d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4282d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4283d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4284d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4285b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4286b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4287d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4288d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4289d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4290d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4291d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4292b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4293d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4294d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4295d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4296d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4297d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4298d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 429979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 430379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 43060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 43101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 43191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 43201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 43211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43281fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4331e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 43360b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4337044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4338044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4346637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4347637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4354637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4355637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43564032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 43574032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 43584032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 43594032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 43604032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 43660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 43690b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 43721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4375d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 437879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4379d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 438021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 438121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 438221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4383d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 43845e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 43855e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 43865e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 43875e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 43885e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4389d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4390d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4391d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4392d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 439779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 439879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4399d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4402d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4403d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4404d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4405d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4406d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4407637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 44087f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 44097f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 44107f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 44117f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 441279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 441379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 441479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 441579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4417637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4418637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4419637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4421637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4422637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4423637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4425637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4426637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4427637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4428637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4429637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4430637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4437637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4440637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4441d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4442637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4443637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4445d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4449637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 44549d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 44559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 44633cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 44643cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 44653cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 44709d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 44721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4481d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4495044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4496044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4499044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4500044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4501044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4502044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4503044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4504044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4505044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4506044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4507044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4508044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4509044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4510044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 45131fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4516637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The amount of friction applied to flings. The default value 4526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * is {@link ViewConfiguration#getScrollFriction}. 4527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setFriction(float friction) { 4529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.mScroller.setFriction(friction); 4533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets a scale factor for the fling velocity. The initial scale 4537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * factor is 1.0. 4538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scale The scale factor to multiply the velocity by. 4540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setVelocityScale(float scale) { 4542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mVelocityScale = scale; 4543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Override this for better control over position scrolling. 4547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller createPositionScroller() { 4549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new PositionScroller(); 4550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4551e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed. 4555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position) { 4558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position); 4562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Number of milliseconds to use for the scroll 4575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, duration); 4581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. 4589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset) { 4595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, offset); 4599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46004032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed, but it will 4604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * stop early if scrolling further would scroll boundPosition out of 4605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view. 4606cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * 4607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param boundPosition Do not scroll if it would move this adapter 4609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * position out of view. 4610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position, int boundPosition) { 4612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position, boundPosition); 4616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4617aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll by distance pixels over duration milliseconds. 4620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param distance Distance to scroll in pixels. 4621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Duration of the scroll animation in milliseconds. 4622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollBy(int distance, int duration) { 4624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, false); 4625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4626e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollBy(int distance, int duration, boolean linear) { 4628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No sense starting to scroll if we're not going anywhere 4633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 4634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount; 4636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int topLimit = getPaddingTop(); 4637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomLimit = getHeight() - getPaddingBottom(); 46384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (distance == 0 || mItemCount == 0 || childCount == 0 || 4640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (lastPos == mItemCount && 4642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 4643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.endFling(); 4644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 4645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 4646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.startScroll(distance, duration, linear); 4650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Allows RemoteViews to scroll relatively to a position. 4655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollByOffset(int position) { 4657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = -1; 4658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getFirstVisiblePosition(); 4660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > 0) { 4661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getLastVisiblePosition(); 4662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46634032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index > -1) { 4665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(index - getFirstVisiblePosition()); 4666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child != null) { 4667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Rect visibleRect = new Rect(); 4668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getGlobalVisibleRect(visibleRect)) { 4669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the child is partially visible 4670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childRectArea = child.getWidth() * child.getHeight(); 4671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int visibleRectArea = visibleRect.width() * visibleRect.height(); 4672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette float visibleArea = (visibleRectArea / (float) childRectArea); 4673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float visibleThreshold = 0.75f; 4674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((position < 0) && (visibleArea < visibleThreshold)) { 4675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the top index is not perceivably visible so offset 4676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that top index as well 4677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ++index; 4678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the bottom index is not perceivably visible so offset 4680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that bottom index as well 4681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette --index; 4682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createScrollingCache() { 4690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 4691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(true); 4692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(true); 4693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = true; 4694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void clearScrollingCache() { 4698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isHardwareAccelerated()) { 4699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mClearScrollingCache == null) { 4700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mClearScrollingCache = new Runnable() { 4701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 4702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 4703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mCachingStarted) { 4704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = false; 4705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(false); 4706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 4707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(false); 4708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isAlwaysDrawnWithCacheEnabled()) { 4710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4713aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4714161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4715e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette post(mClearScrollingCache); 4717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4719e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 4722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y the amount of pixels to scroll by vertically 4724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #canScrollList(int) 4725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void scrollListBy(int y) { 4727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette trackMotionScroll(-y, -y); 4728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction Negative to check scrolling up, positive to check 4734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrolling down. 4735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if the list can be scrolled in the specified direction, 4736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * false otherwise. 4737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #scrollListBy(int) 4738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean canScrollList(int direction) { 4740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (direction > 0) { 4748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 4749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPosition = firstPosition + childCount; 4750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 4751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 4754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4756e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Track a motion scroll 4759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 4761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * began. Positive numbers mean the user's finger is moving down the screen. 4762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param incrementalDeltaY Change in deltaY from the previous event. 4763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if we're already at the beginning/end of the list and have nothing to do. 4764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 4766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 4769322171b333a1c796fcc1428a96ea1d854a3881faErik } 4770322171b333a1c796fcc1428a96ea1d854a3881faErik 4771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 47734032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4775aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // "effective padding" In this case is the amount of padding that affects 4777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // how much space should not be filled by items. If we don't clip to padding 4778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there is no effective padding. 4779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingTop = 0; 4780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingBottom = 0; 4781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingTop = listPadding.top; 4783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingBottom = listPadding.bottom; 4784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4785aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // FIXME account for grid vertical spacing too? 4787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceAbove = effectivePaddingTop - firstTop; 4788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = getHeight() - effectivePaddingBottom; 4789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceBelow = lastBottom - end; 47901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = getHeight() - mPaddingBottom - mPaddingTop; 4792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (deltaY < 0) { 4793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.max(-(height - 1), deltaY); 4794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.min(height - 1, deltaY); 4796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4797e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (incrementalDeltaY < 0) { 4799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 4800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 4802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4803e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4805e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update our guesses for where the first and last views are 4807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition == 0) { 4808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess = firstTop - listPadding.top; 4809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess += incrementalDeltaY; 4811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount == mItemCount) { 4813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess += incrementalDeltaY; 4816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4817234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollDown = (firstPosition == 0 && 4819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette firstTop >= listPadding.top && incrementalDeltaY >= 0); 4820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 4821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 4822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (cannotScrollDown || cannotScrollUp) { 4824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return incrementalDeltaY != 0; 4825e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4826e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean down = incrementalDeltaY < 0; 4828e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean inTouchMode = isInTouchMode(); 4830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (inTouchMode) { 4831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette hideSelector(); 4832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4833e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int headerViewsCount = getHeaderViewsCount(); 4835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int footerViewsStart = mItemCount - getFooterViewsCount(); 4836e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int start = 0; 4838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = 0; 4839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int top = -incrementalDeltaY; 4842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette top += listPadding.top; 4844e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getBottom() >= top) { 4848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4861e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int bottom = getHeight() - incrementalDeltaY; 4864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette bottom -= listPadding.bottom; 4866e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 4868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getTop() <= bottom) { 4870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start = i; 4873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4883e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4884e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4885e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4886e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 4888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = true; 4890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 4892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette detachViewsFromParent(start, count); 4893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.removeSkippedScrap(); 4894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 48954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // invalidate before moving the children to avoid unnecessary invalidate 4897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // calls to bubble up from the children all the way to the top 4898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!awakenScrollBars()) { 4899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offsetChildrenTopAndBottom(incrementalDeltaY); 4903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPosition += count; 4906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette fillGap(down); 4911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 4914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectedPosition - mFirstPosition; 4915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(mSelectedPosition, getChildAt(childIndex)); 4917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mSelectorPosition != INVALID_POSITION) { 4919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectorPosition - mFirstPosition; 4920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(INVALID_POSITION, getChildAt(childIndex)); 4922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorRect.setEmpty(); 4925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = false; 49284032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 4930e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of header views in the list. Header views are special views 4936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the top of the list that should not be recycled during a layout. 4937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of header views, 0 in the default implementation. 49394bede9e425875542976a422222510fa4056a8339Romain Guy */ 4940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeaderViewsCount() { 4941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 49424bede9e425875542976a422222510fa4056a8339Romain Guy } 494321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 494421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 4945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of footer views in the list. Footer views are special views 4946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the bottom of the list that should not be recycled during a layout. 49474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 4948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of footer views, 0 in the default implementation. 494921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 4950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getFooterViewsCount() { 4951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 495221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 49534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 49544bede9e425875542976a422222510fa4056a8339Romain Guy /** 4955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fills the gap left open by a touch-scroll. During a touch scroll, children that 4956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * remain on screen are shifted and the other ones are discarded. The role of this 4957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * method is to fill the gap thus created by performing a partial layout in the 4958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * empty space. 4959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param down true if the scroll is going down, false if it is going up 4961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void fillGap(boolean down); 4963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void hideSelector() { 4965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition != INVALID_POSITION) { 4966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLayoutMode != LAYOUT_SPECIFIC) { 4967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mSelectedPosition; 4968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 4970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mNextSelectedPosition; 4971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectedPositionInt(INVALID_POSITION); 4973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(INVALID_POSITION); 4974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedTop = 0; 4975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4977322171b333a1c796fcc1428a96ea1d854a3881faErik 4978322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 4980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 4981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of items available in the adapter 4982322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int reconcileSelectedPosition() { 4984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = mSelectedPosition; 4985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = mResurrectToPosition; 4987322171b333a1c796fcc1428a96ea1d854a3881faErik } 4988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.max(0, position); 4989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.min(position, mItemCount - 1); 4990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return position; 4991322171b333a1c796fcc1428a96ea1d854a3881faErik } 4992322171b333a1c796fcc1428a96ea1d854a3881faErik 4993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling 4995e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 4997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row containing y 4998e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract int findMotionRow(int y); 5000e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 5001e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 5002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling. 5003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 5005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row closest to y 5006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int findClosestMotionRow(int y) { 5008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 5010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return INVALID_POSITION; 5011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int motionRow = findMotionRow(y); 5014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Causes all the views to be rebuilt and redrawn. 5019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void invalidateViews() { 5021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 5022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 5023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 5024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 5025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5027499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If there is a selection returns false. 5029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Otherwise resurrects the selection and returns true if resurrected. 5030499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelectionIfNeeded() { 5032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && resurrectSelection()) { 5033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes the item at the supplied position selected. 50412f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 5042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the position of the new selection 50432f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 5044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void setSelectionInt(int position); 5045ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5046ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 5047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Attempt to bring the selection back if the user is switching from touch 5048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to trackball mode 5049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return Whether selection was set to something. 5050ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 5051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelection() { 5052ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 5053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount <= 0) { 5055ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 5056ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 5057ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedTop = 0; 5059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedPos; 5060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenTop = mListPadding.top; 5061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenBottom = mBottom - mTop - mListPadding.bottom; 5062ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 5063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int toPosition = mResurrectToPosition; 5064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean down = true; 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 5067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = toPosition; 5068bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 5069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View selected = getChildAt(selectedPos - mFirstPosition); 5070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = selected.getTop(); 5071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedBottom = selected.getBottom(); 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are scrolled, don't get in the fade 5074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedTop < childrenTop) { 5075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenTop + getVerticalFadingEdgeLength(); 5076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (selectedBottom > childrenBottom) { 5077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenBottom - selected.getMeasuredHeight() 5078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette - getVerticalFadingEdgeLength(); 5079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition < firstPosition) { 5082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Default to selecting whatever is first 5083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition; 5084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == 0) { 5089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remember the position of the first item 5090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we are scrolled at all 5092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition > 0 || top < childrenTop) { 5093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are scrolled, don't select anything that is 5094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // in the fade region 5095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenTop += getVerticalFadingEdgeLength(); 5096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (top >= childrenTop) { 5099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found a view whose top is fully visisble 5100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int itemCount = mItemCount; 5107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette down = false; 5108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + childCount - 1; 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 5111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 5113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = v.getBottom(); 5114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == childCount - 1) { 5116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 5118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenBottom -= getVerticalFadingEdgeLength(); 5119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom <= childrenBottom) { 5123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(mFlingRunnable); 5133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 5134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 5135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTouchMode = TOUCH_MODE_REST; 5137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearScrollingCache(); 5138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = selectedTop; 5139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = lookForSelectablePosition(selectedPos, down); 5140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 5141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 5142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectionInt(selectedPos); 5144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = INVALID_POSITION; 5147029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return selectedPos >= 0; 5151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void confirmCheckedPositionsById() { 5154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Clear out the positional check states, we'll rebuild it below from IDs. 5155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.clear(); 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean checkedCountChanged = false; 5158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 5159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long id = mCheckedIdStates.keyAt(checkedIndex); 5160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 5161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long lastPosId = mAdapter.getItemId(lastPos); 5163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id != lastPosId) { 5164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Look around to see if the ID is nearby. If not, uncheck it. 5165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 5166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 5167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean found = false; 5168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int searchPos = start; searchPos < end; searchPos++) { 5169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long searchId = mAdapter.getItemId(searchPos); 5170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id == searchId) { 5171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette found = true; 5172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(searchPos, true); 5173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.setValueAt(checkedIndex, searchPos); 5174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!found) { 5179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.delete(id); 5180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedIndex--; 5181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedItemCount--; 5182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedCountChanged = true; 5183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 5184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 5185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastPos, id, false); 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(lastPos, true); 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (checkedCountChanged && mChoiceActionMode != null) { 5194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode.invalidate(); 51959d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 5196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51979d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void handleDataChanged() { 5200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = mItemCount; 5201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int lastHandledItemCount = mLastHandledItemCount; 5202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastHandledItemCount = mItemCount; 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 5205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette confirmCheckedPositionsById(); 5206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 52074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: In the future we can recycle these views based on stable ID instead. 5209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.clearTransientStateViews(); 5210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 5212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int newPos; 5213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectablePos; 5214029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Find the row we are supposed to sync to 5216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 5217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update this first, since setNextSelectedPositionInt inspects it 5218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 5222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mForceTranscriptScroll) { 5226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mForceTranscriptScroll = false; 5227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listBottom = getHeight() - getPaddingBottom(); 5232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastChild = getChildAt(childCount - 1); 5233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFirstPosition + childCount >= lastHandledItemCount && 5235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= listBottom) { 5236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Something new came in and we didn't scroll; give the user a clue that 5240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there's something new. 5241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette awakenScrollBars(); 5242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mSyncMode) { 5245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_SELECTED_POSITION: 5246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isInTouchMode()) { 5247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We saved our state when not in touch mode. (We know this because 5248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 5249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // restore in touch mode. Just leave mSyncPosition as it is (possibly 5250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // adjusting if the available range changed) and return. 5251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we can find a position in the new data with the same 5257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // id as the old selection. This will change mSyncPosition. 5258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = findSyncPosition(); 5259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= 0) { 5260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found it. Now verify that new selection is still selectable 5261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos == newPos) { 5263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Same row id is selected 5264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = newPos; 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSyncHeight == getHeight()) { 5267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are at the same height as when we saved state, try 5268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to restore the scroll position too. 5269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are not the same height as when the selection was saved, so 5272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // don't try to restore the exact position 5273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SET_SELECTION; 5274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Restore selection 5277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(newPos); 5278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_FIRST_POSITION: 5284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Leave mSyncPosition as it is -- just pin to available range 5285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5290ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 5291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 5293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We couldn't find matching data -- try to use the same position 5294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = getSelectedItemPosition(); 5295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pin position to the available range 5297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= count) { 5298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = count - 1; 5299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos < 0) { 5301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = 0; 5302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we select something selectable -- first look down 5305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Looking down didn't work -- try looking up 5312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, false); 5313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We already know where we want to resurrect the selection 5321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mResurrectToPosition >= 0) { 5322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Nothing is selected. Give up and reset everything. 5329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 5330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedPosition = INVALID_POSITION; 5331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedRowId = INVALID_ROW_ID; 5332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedPosition = INVALID_POSITION; 5333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedRowId = INVALID_ROW_ID; 5334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorPosition = INVALID_POSITION; 5337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkSelectionChanged(); 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void onDisplayHint(int hint) { 5342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onDisplayHint(hint); 5343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (hint) { 5344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case INVISIBLE: 5345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case VISIBLE: 5350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing()) { 5351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopupHidden = hint == INVISIBLE; 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Removes the filter window 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void dismissPopup() { 5362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null) { 5363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.dismiss(); 5364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Shows the filter window 5369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void showPopup() { 5371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we have a window before showing the popup 5372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getWindowVisibility() == View.VISIBLE) { 5373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionPopup(); 5375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we get focus if we are showing the popup 5376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkFocus(); 5377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void positionPopup() { 5381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int screenHeight = getResources().getDisplayMetrics().heightPixels; 5382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int[] xy = new int[2]; 5383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getLocationOnScreen(xy); 5384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: The 20 below should come from the theme 5385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: And the gravity should be defined in the theme as well 5386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!mPopup.isShowing()) { 5388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 5389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette xy[0], bottomGap); 5390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.update(xy[0], bottomGap, -1, -1); 5392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 53954e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 5396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * What is the distance between the source and destination rectangles given the direction of 5397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * focus navigation between them? The direction basically helps figure out more quickly what is 5398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * self evident by the relationship between the rects... 5399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param source the source rectangle 5401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param dest the destination rectangle 5402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction the direction 5403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the distance between the rectangles 54044e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 5405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static int getDistance(Rect source, Rect dest, int direction) { 5406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int sX, sY; // source x, y 5407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int dX, dY; // dest x, y 5408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (direction) { 5409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_RIGHT: 5410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right; 5411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left; 5413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_DOWN: 5416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.bottom; 5418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top; 5420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_LEFT: 5422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left; 5423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.right; 5425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_UP: 5428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top; 5430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.bottom; 5432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_FORWARD: 5434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_BACKWARD: 5435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right + source.width() / 2; 5436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 5441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("direction must be one of " 5442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 5443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 54444e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 5445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaX = dX - sX; 5446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaY = dY - sY; 5447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return deltaY * deltaY + deltaX * deltaX; 5448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean isInFilterMode() { 5452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 54534e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sends a key to the text filter window 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param keyCode The keycode for the event 5459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param event The actual key event 5460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return True if the text filter handled the event, false otherwise. 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!acceptFilter()) { 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean handled = false; 5469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean okToSend = true; 5470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (keyCode) { 5471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_UP: 5472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_DOWN: 5473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_LEFT: 5474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_RIGHT: 5475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_CENTER: 5476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_ENTER: 5477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_BACK: 5480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && mPopup.isShowing()) { 5481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (event.getAction() == KeyEvent.ACTION_DOWN 5482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.getRepeatCount() == 0) { 5483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent.DispatcherState state = getKeyDispatcherState(); 5484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (state != null) { 5485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette state.startTracking(event, this); 5486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (event.getAction() == KeyEvent.ACTION_UP 5489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.isTracking() && !event.isCanceled()) { 5490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setText(""); 5492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_SPACE: 5497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Only send spaces once we are filtered 5498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = mFiltered; 5499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (okToSend) { 5503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent forwardEvent = event; 5506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (forwardEvent.getRepeatCount() > 0) { 5507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int action = event.getAction(); 5511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (action) { 5512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_DOWN: 5513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 5514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_UP: 5517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 5518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_MULTIPLE: 5521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyMultiple(keyCode, count, event); 5522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return handled; 5526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Return an InputConnection for editing of the filter text. 5530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isTextFilterEnabled()) { 5534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPublicInputConnection == null) { 5535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDefInputConnection = new BaseInputConnection(this, false); 5536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPublicInputConnection = new InputConnectionWrapper(outAttrs); 5537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 5539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 5540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mPublicInputConnection; 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private class InputConnectionWrapper implements InputConnection { 5546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final EditorInfo mOutAttrs; 5547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection mTarget; 554814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnectionWrapper(EditorInfo outAttrs) { 5550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOutAttrs = outAttrs; 5551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 555214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection getTarget() { 5554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) { 5555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget; 5558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 555914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean reportFullscreenMode(boolean enabled) { 5562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since it is 5563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the "real" one the IME is talking with. 5564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.reportFullscreenMode(enabled); 5565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performEditorAction(int editorAction) { 5569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The editor is off in its own window; we need to be 5570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the one that does this. 5571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (editorAction == EditorInfo.IME_ACTION_DONE) { 5572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette InputMethodManager imm = (InputMethodManager) 5573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (imm != null) { 5575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette imm.hideSoftInputFromWindow(getWindowToken(), 0); 557614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 557814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 558014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 558114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean sendKeyEvent(KeyEvent event) { 5584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since the filter 5585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // text view may not be shown in a window so has 5586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // no ViewAncestor to dispatch events with. 5587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.sendKeyEvent(event); 558814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 558914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextBeforeCursor(int n, int flags) { 5592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextBeforeCursor(n, flags); 5594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextAfterCursor(int n, int flags) { 5598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextAfterCursor(n, flags); 560014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getSelectedText(int flags) { 5604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getSelectedText(flags); 5606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5607539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public int getCursorCapsMode(int reqModes) { 5610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getCursorCapsMode(reqModes); 5612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().getExtractedText(request, flags); 5617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().deleteSurroundingText(beforeLength, afterLength); 5622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingText(CharSequence text, int newCursorPosition) { 5626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingText(text, newCursorPosition); 5627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingRegion(int start, int end) { 5631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingRegion(start, end); 5632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean finishComposingText() { 5636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget == null || mTarget.finishComposingText(); 5637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitText(CharSequence text, int newCursorPosition) { 5641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitText(text, newCursorPosition); 5642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCompletion(CompletionInfo text) { 5646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCompletion(text); 5647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCorrection(CorrectionInfo correctionInfo) { 5651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCorrection(correctionInfo); 5652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setSelection(int start, int end) { 5656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setSelection(start, end); 5657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performContextMenuAction(int id) { 5661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performContextMenuAction(id); 5662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean beginBatchEdit() { 5666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().beginBatchEdit(); 5667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean endBatchEdit() { 5671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().endBatchEdit(); 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean clearMetaKeyStates(int states) { 5676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().clearMetaKeyStates(states); 5677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performPrivateCommand(String action, Bundle data) { 5681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performPrivateCommand(action, data); 568243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 568343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 568443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For filtering we proxy an input connection to an internal text editor, 5687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * and this allows the proxying to happen. 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean checkInputConnectionProxy(View view) { 5691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view == mTextFilter; 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Creates the window for the text filter and populates it with an EditText field; 5696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param animateEntrance true if the window should appear with an animation 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createTextFilter(boolean animateEntrance) { 5700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup == null) { 5701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PopupWindow p = new PopupWindow(getContext()); 5702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setFocusable(false); 5703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setTouchable(false); 5704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setContentView(getTextFilterInput()); 5706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setWidth(LayoutParams.WRAP_CONTENT); 5707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setHeight(LayoutParams.WRAP_CONTENT); 5708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setBackgroundDrawable(null); 5709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup = p; 5710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getViewTreeObserver().addOnGlobalLayoutListener(this); 5711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mGlobalLayoutListenerAddedFilter = true; 5712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (animateEntrance) { 5714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 5715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private EditText getTextFilterInput() { 5721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTextFilter == null) { 5722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter = (EditText) layoutInflater.inflate( 5724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette com.android.internal.R.layout.typing_filter, null); 5725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // For some reason setting this as the "real" input type changes 5726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the text view in some way that it doesn't work, and I don't 5727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // want to figure out why this is. 5728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.addTextChangedListener(this); 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTextFilter; 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clear the text filter. 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void clearTextFilter() { 5740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered) { 5741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getTextFilterInput().setText(""); 5742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns if the ListView currently has a text filter. 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasTextFilter() { 5753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 5754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onGlobalLayout() { 5758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isShown()) { 5759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the popup if we are filtered 5760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 5761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Hide the popup when we are no longer visible 5765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void beforeTextChanged(CharSequence s, int start, int count, int after) { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Performs 5782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the actual filtering as the text changes, and takes care of hiding and 5783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * showing the popup displaying the currently entered filter text. 5784b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5785b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onTextChanged(CharSequence s, int start, int before, int count) { 5787c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int length = s.length(); 5790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean showing = mPopup.isShowing(); 5791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!showing && length > 0) { 5792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the filter popup if necessary 5793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = true; 5795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (showing && length == 0) { 5796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove the filter popup if the user has cleared all text 5797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter instanceof Filterable) { 5801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Filter f = ((Filterable) mAdapter).getFilter(); 5802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Filter should not be null when we reach this part 5803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (f != null) { 5804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette f.filter(s, this); 5805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalStateException("You cannot call onTextChanged with a non " 5807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "filterable adapter"); 5808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5810c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5811b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 58120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void afterTextChanged(Editable s) { 5819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5820f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onFilterComplete(int count) { 5823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && count > 0) { 5824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette resurrectSelection(); 5826f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5828f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5834f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 5837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new LayoutParams(p); 5838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5839f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams generateLayoutParams(AttributeSet attrs) { 5842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(getContext(), attrs); 5843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5844f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 5847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return p instanceof AbsListView.LayoutParams; 5848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58815be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 58825be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 58835be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 58845be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 58855be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 589052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 589152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 589252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 589352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 589452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 589552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 589652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 589752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59067b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views (excluding headers and footers) held by this AbsListView into the supplied 5913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * List. This includes views displayed on the screen as well as views stored in AbsListView's 5914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * internal view recycler. 5915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param views A list into which to put the reclaimed views 5917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void reclaimViews(List<View> views) { 5919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childCount = getChildCount(); 5920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette RecyclerListener listener = mRecycler.mRecyclerListener; 5921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Reclaim views on screen 5923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 5925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 5926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't reclaim header or footer views, or views that should be ignored 5927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 5928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.add(child); 5929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.setAccessibilityDelegate(null); 5930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (listener != null) { 5931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pretend they went through the scrap heap 5932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette listener.onMovedToScrapHeap(child); 5933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.reclaimScrapViews(views); 5937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeAllViewsInLayout(); 5938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void finishGlows() { 5941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mEdgeGlowTop != null) { 5942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowTop.finish(); 5943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowBottom.finish(); 5944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * through the specified intent. 5950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsAdapter(Intent intent) { 5953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 5954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 5955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 5957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcOld = new Intent.FilterComparison( 5958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.getRemoteViewsServiceIntent()); 5959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (fcNew.equals(fcOld)) { 5960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 5964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, create a new RemoteViewsAdapter for binding 5965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter.isDataReady()) { 5967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 5968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 5973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param handler The OnClickHandler to use when inflating RemoteViews. 5975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 5977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 5979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 5980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 5981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 5983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 5988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * connected yet. 5989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void deferNotifyDataSetChanged() { 5992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = true; 5993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter connects to the RemoteViewsService. 5997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onRemoteAdapterConnected() { 6000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != mAdapter) { 6001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 6002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDeferNotifyDataSetChanged) { 6003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.notifyDataSetChanged(); 6004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 6005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mRemoteAdapter != null) { 6008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.superNotifyDataSetChanged(); 6009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter disconnects from the RemoteViewsService. 6016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onRemoteAdapterDisconnected() { 6019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the remote adapter disconnects, we keep it around 6020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // since the currently displayed items are still cached. 6021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Further, we want the service to eventually reconnect 6022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // when necessary, as triggered by this view requesting 6023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // items from the Adapter. 6024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * being displayed by the AbsListView. 6029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setVisibleRangeHint(int start, int end) { 6031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setVisibleRangeHint(start, end); 6033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the recycler listener to be notified whenever a View is set aside in 6038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the recycler for later reuse. This listener can be used to free resources 6039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to the View. 6040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param listener The recycler listener to be notified of views set aside 6042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * in the recycler. 6043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRecyclerListener(RecyclerListener listener) { 6048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.mRecyclerListener = listener; 6049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onChanged() { 6054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onChanged(); 6055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onInvalidated() { 6062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onInvalidated(); 6063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * selects and deselects list items. 6074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public interface MultiChoiceModeListener extends ActionMode.Callback { 6076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called when an item is checked or unchecked during selection mode. 6078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param mode The {@link ActionMode} providing the selection mode 6080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Adapter position of the item that was checked or unchecked 6081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param id Adapter ID of the item that was checked or unchecked 6082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param checked <code>true</code> if the item is now checked, <code>false</code> 6083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * if the item is now unchecked. 6084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked); 6087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private MultiChoiceModeListener mWrapped; 6091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setWrapped(MultiChoiceModeListener wrapped) { 6093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped = wrapped; 6094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasWrappedCallback() { 6097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped != null; 6098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mWrapped.onCreateActionMode(mode, menu)) { 6103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Initialize checked graphic state? 6104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(false); 6105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onPrepareActionMode(mode, menu); 6113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onActionItemClicked(mode, item); 6118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onDestroyActionMode(ActionMode mode) { 6122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onDestroyActionMode(mode); 6123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode = null; 6124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ending selection mode means deselecting everything. 6126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearChoices(); 6127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 6129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 6130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(true); 6133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked) { 6138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If there are no items selected we no longer need the selection mode. 6141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getCheckedItemCount() == 0) { 6142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mode.finish(); 6143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * AbsListView extends LayoutParams to provide a place to hold the view type. 6149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static class LayoutParams extends ViewGroup.LayoutParams { 6151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * View type for this view, as returned by 6153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link android.widget.Adapter#getItemViewType(int) } 6154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list", mapping = { 6156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 6157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 6158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }) 6159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewType; 6160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When this boolean is set, the view has been added to the AbsListView 6163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at least once. It is used to know whether headers/footers have already 6164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * been added to the list view and whether they should be treated as 6165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * recycled views or not. 6166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean recycledHeaderFooter; 6169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When an AbsListView is measured with an AT_MOST measure spec, it needs 6172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to obtain children views to measure itself. When doing so, the children 6173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * are not attached to the window, but put in the recycler which assumes 6174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * they've been attached before. Setting this flag will force the reused 6175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view to be attached to the window rather than just attached to the 6176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * parent. 6177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean forceAdd; 6180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position the view was removed from when pulled out of the 6183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrap heap. 6184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrappedFromPosition; 6187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The ID the view represents 6190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long itemId = -1; 6192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(Context c, AttributeSet attrs) { 6194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(c, attrs); 6195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h) { 6198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h, int viewType) { 6202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette this.viewType = viewType; 6204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(ViewGroup.LayoutParams source) { 6207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(source); 6208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A RecyclerListener is used to receive a notification whenever a View is placed 6213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * inside the RecycleBin's scrap heap. This listener is used to free resources 6214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to Views placed in the RecycleBin. 6215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static interface RecyclerListener { 6220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Indicates that the specified View was moved into the recycler's scrap heap. 6222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The view is not displayed on screen any more and any expensive resource 6223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated with the view should be discarded. 6224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param view 6226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void onMovedToScrapHeap(View view); 6228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 6232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 6233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * start of a layout. By construction, they are displaying current information. At the end of 6234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 6235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * could potentially be used by the adapter to avoid allocating views unnecessarily. 6236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class RecycleBin { 6241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private RecyclerListener mRecyclerListener; 6242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position of the first view stored in mActiveViews. 6245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mFirstActivePosition; 6247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views that were on screen at the start of layout. This array is populated at the start of 6250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 6251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views in mActiveViews represent a contiguous range of Views, with position of the first 6252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view store in mFirstActivePosition. 6253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private View[] mActiveViews = new View[0]; 6255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Unsorted views that can be used by the adapter as a convert view. 6258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View>[] mScrapViews; 6260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mViewTypeCount; 6262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mCurrentScrap; 6264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mSkippedScrap; 6266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private SparseArray<View> mTransientStateViews; 6268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private LongSparseArray<View> mTransientStateViewsById; 6269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setViewTypeCount(int viewTypeCount) { 6271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTypeCount < 1) { 6272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 6273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection unchecked 6275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 6276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; i++) { 6277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews[i] = new ArrayList<View>(); 6278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mViewTypeCount = viewTypeCount; 6280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap = scrapViews[0]; 6281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews = scrapViews; 6282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void markChildrenDirty() { 6285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).forceLayout(); 6290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).forceLayout(); 6298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViews.size(); 6303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.valueAt(i).forceLayout(); 6305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById != null) { 6308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViewsById.size(); 6309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.valueAt(i).forceLayout(); 6311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean shouldRecycleViewType(int viewType) { 6316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return viewType >= 0; 6317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clears the scrap heap. 6321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clear() { 6323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 63253e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 63303e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearTransientStateViews(); 6335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fill ActiveViews with all of the children of the AbsListView. 6339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param childCount The minimum number of views mActiveViews should hold 6341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param firstActivePosition The position of the first view that will be stored in 6342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews 6343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void fillActiveViews(int childCount, int firstActivePosition) { 6345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mActiveViews.length < childCount) { 6346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mActiveViews = new View[childCount]; 6347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstActivePosition = firstActivePosition; 6349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection MismatchedReadAndWriteOfArray 6351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't put header or footer views into the scrap heap 6356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 6358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // However, we will NOT place them into scrap views. 6359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = child; 6360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Get the view corresponding to the specified position. The view will be removed from 6366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews if it is found. 6367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The position to look up in mActiveViews 6369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The view if it is found, null otherwise 6370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getActiveView(int position) { 6372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = position - mFirstActivePosition; 6373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >=0 && index < activeViews.length) { 6375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View match = activeViews[index]; 6376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[index] = null; 6377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return match; 6378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getTransientStateView(int position) { 6383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(position); 6385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViewsById.get(id); 6386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.remove(id); 6387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = mTransientStateViews.indexOfKey(position); 6391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0) { 6392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViews.valueAt(index); 6393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.removeAt(index); 6394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Dumps and fully detaches any currently saved views with transient 6402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * state. 6403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clearTransientStateViews() { 6405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> viewsByPos = mTransientStateViews; 6406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsByPos != null) { 6407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsByPos.size(); 6408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsByPos.valueAt(i), false); 6410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsByPos.clear(); 6412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> viewsById = mTransientStateViewsById; 6415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsById != null) { 6416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsById.size(); 6417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsById.valueAt(i), false); 6419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsById.clear(); 6421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A view from the ScrapViews collection. These are unordered. 6426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getScrapView(int position) { 6428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mCurrentScrap, position); 6430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 64313e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int whichScrap = mAdapter.getItemViewType(position); 6432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mScrapViews[whichScrap], position); 6434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts a view into the list of scrap views. 6441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * <p> 6442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * with transient state will be preserved for later retrieval. 6444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scrap The view to add 6446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The view's position within its parent 6447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void addScrapView(View scrap, int position) { 6449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 6450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp == null) { 6451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = position; 6455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove but don't scrap header or footer views, or views that 6457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // should otherwise not be recycled. 6458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewType = lp.viewType; 6459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!shouldRecycleViewType(viewType)) { 6460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.dispatchStartTemporaryDetach(); 6464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The the accessibility state of the view may change while temporary 6466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // detached and we do not allow detached views to fire accessibility 6467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // events. So we are announcing that the subtree changed giving a chance 6468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to clients holding on to a view in this subtree to refresh it. 6469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette notifyViewAccessibilityStateChangedIfNeeded( 6470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scrap views that have transient state. 6473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean scrapHasTransientState = scrap.hasTransientState(); 6474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrapHasTransientState) { 6475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the adapter has stable IDs, we can reuse the view for 6477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the same data. 6478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the data hasn't changed, we can reuse the views at 6484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // their old positions. 6485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(position, scrap); 6489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, we'll have to remove the view and start over. 6491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap = new ArrayList<View>(); 6493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.add(scrap); 6495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap.add(scrap); 6499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews[viewType].add(scrap); 6501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRecyclerListener != null) { 6504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Finish the removal of any views that skipped the scrap heap. 6511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void removeSkippedScrap() { 6513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mSkippedScrap.size(); 6517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(mSkippedScrap.get(i), false); 6519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.clear(); 6521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views remaining in mActiveViews to mScrapViews. 6525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void scrapActiveViews() { 6527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean hasListener = mRecyclerListener != null; 6529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean multipleScraps = mViewTypeCount > 1; 6530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View> scrapViews = mCurrentScrap; 6532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = count - 1; i >= 0; i--) { 6534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp 6537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette = (AbsListView.LayoutParams) victim.getLayoutParams(); 6538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int whichScrap = lp.viewType; 6539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = null; 6541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim.hasTransientState()) { 6543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store views with transient state for later use. 6544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(mFirstActivePosition + i); 6551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(id, victim); 6552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(mFirstActivePosition + i, victim); 6557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The data has changed, we can't keep this view. 6559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!shouldRecycleViewType(whichScrap)) { 6562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Discard non-recyclable views except headers/footers. 6563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store everything else on the appropriate scrap heap. 6568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (multipleScraps) { 6569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews = mScrapViews[whichScrap]; 6570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = mFirstActivePosition + i; 6574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews.add(victim); 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (hasListener) { 6577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(victim); 6578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette pruneScrapViews(); 6584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 6586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes sure that the size of mScrapViews does not exceed the size of 6588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews, which can happen if an adapter does not recycle its 6589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * views. Removes cached transient state views that no longer have 6590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * transient state. 6591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void pruneScrapViews() { 6593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int maxViews = mActiveViews.length; 6594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int size = scrapPile.size(); 6599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extras = size - maxViews; 6600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette size--; 6601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < extras; j++) { 6602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(scrapPile.remove(size--), false); 6603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66043ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6605499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> transViewsByPos = mTransientStateViews; 6607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsByPos != null) { 6608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsByPos.size(); i++) { 6609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsByPos.valueAt(i); 6610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsByPos.removeAt(i); 6613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6617a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> transViewsById = mTransientStateViewsById; 6619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsById != null) { 6620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsById.size(); i++) { 6621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsById.valueAt(i); 6622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsById.removeAt(i); 6625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66302148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 6631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts all views in the scrap heap into the supplied list. 6633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void reclaimScrapViews(List<View> views) { 6635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(mCurrentScrap); 6637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(scrapPile); 6643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66442148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 6645499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6646499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Updates the cache color hint of all known views. 6649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param color The new cache color hint. 6651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setCacheColorHint(int color) { 6653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).setDrawingCacheBackgroundColor(color); 6658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).setDrawingCacheBackgroundColor(color); 6666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Just in case this is called during a layout pass 6670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; ++i) { 6673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.setDrawingCacheBackgroundColor(color); 6676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6679499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 66803e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 66813e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int size = scrapViews.size(); 66823e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (size > 0) { 66833e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette // See if we still have a view for this position or ID. 66843e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int i = 0; i < size; i++) { 66853e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View view = scrapViews.get(i); 66863e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final AbsListView.LayoutParams params = 66873e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette (AbsListView.LayoutParams) view.getLayoutParams(); 66883e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 66893e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (mAdapterHasStableIds) { 66903e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final long id = mAdapter.getItemId(position); 66913e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (id == params.itemId) { 66923e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrapViews.remove(i); 66933e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 66943e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else if (params.scrappedFromPosition == position) { 66953e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(i); 66963e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 66973e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 66983e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 6699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67003e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(size - 1); 67013e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 67023e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 67033e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else { 67043e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return null; 6705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67063e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67073e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67083e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearScrap(final ArrayList<View> scrap) { 67093e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int scrapCount = scrap.size(); 67103e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int j = 0; j < scrapCount; j++) { 67113e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 67123e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67133e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67143e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67153e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearAccessibilityFromScrap(View view) { 67163e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (view.isAccessibilityFocused()) { 67173e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.clearAccessibilityFocus(); 67183e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67193e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.setAccessibilityDelegate(null); 67203e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67213e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67223e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void removeDetachedView(View child, boolean animate) { 67233e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette child.setAccessibilityDelegate(null); 67243e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette AbsListView.this.removeDetachedView(child, animate); 6725b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6726b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6727b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6728b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 6729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of the view for the specified position. 67309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 6732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return view height in pixels 67339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeightForPosition(int position) { 6735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstVisiblePosition = getFirstVisiblePosition(); 6736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = position - firstVisiblePosition; 6738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0 && index < childCount) { 6739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is on-screen, use existing view. 6740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = getChildAt(index); 6741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view.getHeight(); 6742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is off-screen, obtain & recycle view. 6744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = obtainView(position, mIsScrap); 6745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette view.measure(mWidthMeasureSpec, MeasureSpec.UNSPECIFIED); 6746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = view.getMeasuredHeight(); 6747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(view, position); 6748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return height; 6749b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6750b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6751b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 67529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the selected item and positions the selection y pixels from the top edge 6754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the ListView. (If in touch mode, the item will not be selected but it will 6755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * still be positioned appropriately.) 6756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Index (starting at 0) of the data item to be selected. 6758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y The distance from the top edge of the ListView (plus padding) that the 6759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * item will be positioned. 6760f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setSelectionFromTop(int position, int y) { 6762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter == null) { 6763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6764a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6765a798170f2abe198f806b12dd904830bc25257525Adam Powell 6766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 6767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = lookForSelectablePosition(position, true); 6768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(position); 6770f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = position; 6773f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6774f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 6777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = mListPadding.top + y; 6778f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 6780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = position; 6781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncRowId = mAdapter.getItemId(position); 6782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6783f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 6785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 6786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract positon scroller used to handle smooth scrolling. 67939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static abstract class AbsPositionScroller { 6795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position); 6796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position, int boundPosition); 6797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset); 6798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset, int duration); 6799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void stop(); 6800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6801079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Default position scroller that simulates a fling. 6804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class PositionScroller extends AbsPositionScroller implements Runnable { 6806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int SCROLL_DURATION = 200; 6807539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_POS = 1; 6809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_POS = 2; 6810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_BOUND = 3; 6811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_BOUND = 4; 6812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_OFFSET = 5; 68139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mMode; 6815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mTargetPos; 6816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mBoundPos; 6817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mLastSeenPos; 6818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mScrollDuration; 6819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final int mExtraScroll; 68209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mOffsetFromTop; 68229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PositionScroller() { 6824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 68259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position) { 6829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 68309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 68499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - clampedPosition + 1; 6854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = clampedPosition - lastPos + 1; 6857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 6858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 6860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 6867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 68719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6874539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position, final int boundPosition) { 6877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6878539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosition == INVALID_POSITION) { 6880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 68829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position, boundPosition); 6889f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6892f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6898539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromLast = lastPos - boundPosition; 6907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromLast < 1) { 6908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6910728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 69110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = firstPos - clampedPosition + 1; 6913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromLast - 1; 6914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_BOUND; 6917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromFirst = boundPosition - firstPos; 6923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromFirst < 1) { 6924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = clampedPosition - lastPos + 1; 6929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromFirst - 1; 6930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_BOUND; 6933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 69369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 6939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 69409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6941595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 69469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = boundPosition; 6949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 69509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 69529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 6956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, offset, SCROLL_DURATION); 69579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(final int position, int offset, final int duration) { 6961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6962539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int postOffset = offset; 6966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, postOffset, duration); 6969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6972539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6973595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6978728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6979539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offset += getPaddingTop(); 6981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 6983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOffsetFromTop = offset; 6984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 6986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_OFFSET; 6987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTargetPos < firstPos) { 6993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - mTargetPos; 6994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTargetPos > lastPos) { 6995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = mTargetPos - lastPos; 69969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 6998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 6999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(targetTop - offset, duration, true); 7000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 70019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = screenTravelCount < 1 ? 7006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette duration : (int) (duration / screenTravelCount); 7007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 7008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 70109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 70129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scroll such that targetPos is in the visible padded region without scrolling 7014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * boundPos out of view. Assumes targetPos is onscreen. 70159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void scrollToVisible(int targetPos, int boundPos, int duration) { 7017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedTop = mListPadding.top; 7021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedBottom = getHeight() - mListPadding.bottom; 7022539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetPos < firstPos || targetPos > lastPos) { 7024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 7025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette " not visible [" + firstPos + ", " + lastPos + "]"); 7026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos < firstPos || boundPos > lastPos) { 7028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // boundPos doesn't matter, it's already offscreen. 7029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boundPos = INVALID_POSITION; 7030d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 7031d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 7032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View targetChild = getChildAt(targetPos - firstPos); 7033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = targetChild.getTop(); 7034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetBottom = targetChild.getBottom(); 7035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrollBy = 0; 7036d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 7037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetBottom > paddedBottom) { 7038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetBottom - paddedBottom; 7039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetTop < paddedTop) { 7041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetTop - paddedTop; 7042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy == 0) { 7045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70471e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 7048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos >= 0) { 7049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View boundChild = getChildAt(boundPos - firstPos); 7050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTop = boundChild.getTop(); 7051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundBottom = boundChild.getBottom(); 7052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absScroll = Math.abs(scrollBy); 70539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 7055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the bottom of the screen. 7056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.max(0, boundBottom - paddedBottom); 7057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 7058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the top of the screen. 7059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.min(0, boundTop - paddedTop); 7060d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 70619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, duration); 70649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void stop() { 7068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(this); 7069539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7070539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 7073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listHeight = getHeight(); 7074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 70759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mMode) { 7077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_POS: { 7078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 1; 7079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 70809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7090595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = lastPos < mItemCount - 1 ? 7096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 70979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 7099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, mScrollDuration, true); 71009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos < mTargetPos) { 7103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 71049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 71069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_BOUND: { 7109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewIndex = 1; 7110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 71119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mBoundPos || childCount <= nextViewIndex 7113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette || firstPos + childCount >= mItemCount) { 7114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 71159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextPos = firstPos + nextViewIndex; 7117bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 7118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos == mLastSeenPos) { 7119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View nextView = getChildAt(nextViewIndex); 7125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewHeight = nextView.getHeight(); 7126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewTop = nextView.getTop(); 7127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 7128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos < mBoundPos) { 7129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 7130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration, true); 7131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = nextPos; 7133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextViewTop > extraScroll) { 7137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 7138bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7139bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7141bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7142595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_POS: { 7144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mLastSeenPos) { 7145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7148728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 71499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View firstView = getChildAt(0); 7151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstView == null) { 7152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 71539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstViewTop = firstView.getTop(); 7155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = firstPos > 0 ? 7156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 715752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 7158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 7159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos > mTargetPos) { 7163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 716452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 716652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_BOUND: { 7169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 2; 7170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 717252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 7174079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 7175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7179079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7180441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 7186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos > mBoundPos) { 7188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 7189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = listHeight - extraScroll; 7192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewBottom = lastViewTop + lastViewHeight; 7193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom > lastViewBottom) { 7194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 7195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7198441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7199441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_OFFSET: { 7201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLastSeenPos == firstPos) { 7202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7206441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7208441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int position = mTargetPos; 7211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7212441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount = 0; 7214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - position + 1; 7216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = position - lastPos; 7218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7219441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7222441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 7224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (-getHeight() * modifier); 7226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (getHeight() * modifier); 7231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(position - firstPos).getTop(); 7237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = targetTop - mOffsetFromTop; 7238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * 7239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ((float) Math.abs(distance) / getHeight())); 7240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7243441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7244441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 7246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7247441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7248441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7249441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7250441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract position scroller that handles sub-position scrolling but has no 7253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * understanding of layout. 7254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract class AbsSubPositionScroller extends AbsPositionScroller { 7256cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final int DURATION_AUTO = -1; 7257cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette 7258cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final int DURATION_AUTO_MIN = 100; 7259cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final int DURATION_AUTO_MAX = 500; 7260441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final SubScroller mSubScroller = new SubScroller(); 7262441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7263441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7264441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * The target offset in pixels between the top of the list and the top 7265441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * of the target position. 7266441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7267441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private int mOffset; 7268441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7269441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7270441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroll the minimum amount to get the target view entirely on-screen. 7271441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7272441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void scrollToPosition(final int targetPosition, final boolean useOffset, 7273441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset, final int boundPosition, final int duration) { 7274441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette stop(); 7275441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7276441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDataChanged) { 7277441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Wait until we're back in a stable state to try this. 7278441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScrollAfterLayout = new Runnable() { 7279441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7280441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7281441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition( 7282441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetPosition, useOffset, offset, boundPosition, duration); 7283441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7284441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7285441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7286441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7287441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 72882ac93ae9194f84e18eafe07dc0304cfbb1297b00Alan Viverette if (mAdapter == null) { 72892ac93ae9194f84e18eafe07dc0304cfbb1297b00Alan Viverette // Can't scroll anywhere without an adapter. 72902ac93ae9194f84e18eafe07dc0304cfbb1297b00Alan Viverette return; 72912ac93ae9194f84e18eafe07dc0304cfbb1297b00Alan Viverette } 72922ac93ae9194f84e18eafe07dc0304cfbb1297b00Alan Viverette 7293cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int itemCount = getCount(); 7294cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int clampedPosition = MathUtils.constrain(targetPosition, 0, itemCount - 1); 7295875f4c2918961fe34a5a74e7a54f970432977116Alan Viverette final int clampedBoundPosition = MathUtils.constrain(boundPosition, -1, itemCount - 1); 7296441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstPosition = getFirstVisiblePosition(); 7297441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastPosition = firstPosition + getChildCount(); 7298cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int targetRow = getRowForPosition(clampedPosition); 7299441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstRow = getRowForPosition(firstPosition); 7300441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastRow = getRowForPosition(lastPosition); 7301441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (useOffset || targetRow <= firstRow) { 7302441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is top-aligned. 7303441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = offset; 7304441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else if (targetRow >= lastRow - 1) { 7305441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is bottom-aligned. 7306441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7307cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette mOffset = getHeightForPosition(clampedPosition) - listHeight; 7308441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7309441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is entirely on-screen. 7310441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7311441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7312441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7313441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette float endSubRow = targetRow; 73142ac93ae9194f84e18eafe07dc0304cfbb1297b00Alan Viverette if (clampedBoundPosition != INVALID_POSITION) { 73152ac93ae9194f84e18eafe07dc0304cfbb1297b00Alan Viverette final int boundRow = getRowForPosition(clampedBoundPosition); 7316bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette if (boundRow >= firstRow && boundRow < lastRow && boundRow != targetRow) { 7317441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endSubRow = computeBoundSubRow(targetRow, boundRow); 7318441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7319441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7320441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7321441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final View firstChild = getChildAt(0); 7322441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChild == null) { 7323441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7324441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7325441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7326441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstChildHeight = firstChild.getHeight(); 7327441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float startOffsetRatio; 7328441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChildHeight == 0) { 7329cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette startOffsetRatio = 0; 7330441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7331441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette startOffsetRatio = -firstChild.getTop() / (float) firstChildHeight; 7332441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7333441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 73342546fcf5c9cf16f5ffe8dcee09f4830bcf5f7e33Alan Viverette final float startSubRow = MathUtils.constrain( 73352546fcf5c9cf16f5ffe8dcee09f4830bcf5f7e33Alan Viverette firstRow + startOffsetRatio, 0, getCount()); 7336441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (startSubRow == endSubRow && mOffset == 0) { 7337441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is already in position. 7338441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7339441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7340441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7341cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int durationMillis; 7342cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette if (duration == DURATION_AUTO) { 7343cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final float subRowDelta = Math.abs(startSubRow - endSubRow); 7344cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette durationMillis = (int) MathUtils.lerp( 7345cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette DURATION_AUTO_MIN, DURATION_AUTO_MAX, subRowDelta / getCount()); 7346cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } else { 7347cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette durationMillis = duration; 7348cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7349cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette 7350cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette mSubScroller.startScroll(startSubRow, endSubRow, durationMillis); 7351441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7352441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7353441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7354441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7355cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette /** 7356cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * Given a target row and offset, computes the sub-row position that 7357cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * aligns with the top of the list. If the offset is negative, the 7358cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * resulting sub-row will be smaller than the target row. 7359cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette */ 7360cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private float resolveOffset(int targetRow, int offset) { 7361cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // Compute the target sub-row position by finding the actual row 7362cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // indicated by the target and offset. 7363cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette int remainingOffset = offset; 7364bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette int targetHeight = getHeightForRow(targetRow); 7365cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette if (offset < 0) { 7366cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // Subtract row heights until we find the right row. 7367cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette while (targetRow > 0 && remainingOffset < 0) { 7368cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette remainingOffset += targetHeight; 7369cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetRow--; 7370cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetHeight = getHeightForRow(targetRow); 7371cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7372cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } else if (offset > 0) { 7373cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // Add row heights until we find the right row. 7374cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette while (targetRow < getCount() - 1 && remainingOffset > targetHeight) { 7375cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette remainingOffset -= targetHeight; 7376cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetRow++; 7377cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetHeight = getHeightForRow(targetRow); 7378cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7379441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7380441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7381441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float targetOffsetRatio; 7382cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette if (remainingOffset < 0 || targetHeight == 0) { 738300b982920222dd364e690d8856bad4caf5734ba5Alan Viverette targetOffsetRatio = 0; 7384441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7385441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetOffsetRatio = remainingOffset / (float) targetHeight; 7386441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7387441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7388cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette return targetRow + targetOffsetRatio; 7389cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7390cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette 7391cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private float computeBoundSubRow(int targetRow, int boundRow) { 7392cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final float targetSubRow = resolveOffset(targetRow, mOffset); 7393441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = 0; 7394441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7395cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // The target row is below the bound row, so the end position would 7396cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // push the bound position above the list. Abort! 7397441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (targetSubRow >= boundRow) { 7398441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return boundRow; 7399441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7400441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7401441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Compute the closest possible sub-position that wouldn't push the 7402441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // bound position's view further below the list. 7403441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7404441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int boundHeight = getHeightForRow(boundRow); 7405cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final float boundSubRow = resolveOffset(boundRow, -listHeight + boundHeight); 7406441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7407441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return Math.max(boundSubRow, targetSubRow); 7408441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7409441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(int position) { 7412cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette scrollToPosition(position, false, 0, INVALID_POSITION, DURATION_AUTO); 7413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7416441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void start(int position, int boundPosition) { 7417cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette scrollToPosition(position, false, 0, boundPosition, DURATION_AUTO); 7418441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7419441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 7422cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette scrollToPosition(position, true, offset, INVALID_POSITION, DURATION_AUTO); 7423441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7424441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset, int duration) { 7427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToPosition(position, true, offset, INVALID_POSITION, duration); 7428441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7429441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7431441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void stop() { 7432441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette removeCallbacks(mAnimationFrame); 7433441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7434441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of a row, which is computed as the maximum height of 7437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the items in the row. 7438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param row the row index 7440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return row height in pixels 7441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getHeightForRow(int row); 7443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the row for the specified item position. 7446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 7448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the row index 7449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getRowForPosition(int position); 7451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the first item position within the specified row. 7454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param row the row 7456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the position of the first item in the row 7457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getFirstPositionForRow(int row); 7459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7460441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void onAnimationFrame() { 7461441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final boolean shouldPost = mSubScroller.computePosition(); 7462441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float subRow = mSubScroller.getPosition(); 7463441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7464441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int row = (int) subRow; 7465441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int position = getFirstPositionForRow(row); 7466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= getCount()) { 7467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Invalid position, abort scrolling. 7468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7471441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int rowHeight = getHeightForRow(row); 7472441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset = (int) (rowHeight * (subRow - row)); 7473441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int addOffset = (int) (mOffset * mSubScroller.getInterpolatedValue()); 7474cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette setSelectionFromTop(position, -offset - addOffset); 7475441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7476441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (shouldPost) { 7477441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7478441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7479441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7480441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7481441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private Runnable mAnimationFrame = new Runnable() { 7482441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7483441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7484441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette onAnimationFrame(); 7485441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7486441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7487441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7488441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7489441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7490441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroller capable of returning floating point positions. 7491441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static class SubScroller { 7493cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final Interpolator INTERPOLATOR = new AccelerateDecelerateInterpolator(); 7494441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7495441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mStartPosition; 7496441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mEndPosition; 7497441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mStartTime; 7498441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mDuration; 7499441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7500441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mPosition; 7501441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mInterpolatedValue; 7502441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7503441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void startScroll(float startPosition, float endPosition, int duration) { 7504441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartPosition = startPosition; 7505441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mEndPosition = endPosition; 7506441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mDuration = duration; 7507441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7508441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartTime = AnimationUtils.currentAnimationTimeMillis(); 7509441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = startPosition; 7510441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolatedValue = 0; 7511441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7512441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7513441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public boolean computePosition() { 7514441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final long elapsed = AnimationUtils.currentAnimationTimeMillis() - mStartTime; 7515441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float value; 7516441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDuration <= 0) { 7517441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = 1; 7518441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7519441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = MathUtils.constrain(elapsed / (float) mDuration, 0, 1); 7520441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7521441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7522cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette mInterpolatedValue = INTERPOLATOR.getInterpolation(value); 7523441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = (mEndPosition - mStartPosition) * mInterpolatedValue + mStartPosition; 7524441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7525441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return elapsed < mDuration; 7526441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7527441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7528441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getPosition() { 7529441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mPosition; 7530441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7531441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7532441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getInterpolatedValue() { 7533441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mInterpolatedValue; 7534441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7535441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 75369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7537