AbsListView.java revision cb23bce60ae8d2c75f8b2053a9da6b6b3880988e
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; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 23039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 23139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 23239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 23339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 26114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 26214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 26314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 264f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 266f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 267f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 308079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 309079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 310079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 312079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3680211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller mPositionScroller; 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 45139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 45239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 45339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 50914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 51014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 51114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 51214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 51314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 559d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 560d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 561d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 562d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 563d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private FastScroller mFastScroll; 5898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 5908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 5918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Temporary holder for fast scroller style until a FastScroller object 5928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * is created. 5938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 5948636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private int mFastScrollStyle; 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 596d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 598d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 6021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 6036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 605161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 6064296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 6074296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 60821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 6094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 61324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 61424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6276dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 64489935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 64989935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 671da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 672da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 673da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 674da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 675da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 67607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 67707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 67807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 679c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 680c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 681c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 682c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 683c1d7e770e123adfa992d013fa294693d077cbc78alanv 6844e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6854e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 687da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 688ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 689ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 690ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 691ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 692ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6960b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6970b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 698e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 699e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 700e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 701e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 702e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 703e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 704e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 705e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 706462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette * Whether the view is in the process of detaching from its window. 707462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette */ 708462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette private boolean mIsDetaching; 709462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 710462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette /** 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7419072110b8293ea3f933822df479c700d8bd9be4cquddusc * @param scrollState The current scroll state. One of 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 760e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 761e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 762e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 763e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 764e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 765e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 766e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 767e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 768e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 769e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 771e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 772e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 773e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 774e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 77939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 78039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 791617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 792617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 793617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 794617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 795617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 796617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 79939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 80039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 801617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 802617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette attrs, com.android.internal.R.styleable.AbsListView, defStyleAttr, defStyleRes); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8318636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette int fastScrollStyle = a.getResourceId(R.styleable.AbsListView_fastScrollStyle, 0); 8328636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette setFastScrollStyle(fastScrollStyle); 8338636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 83820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 83920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 844d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 845d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 846df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 847d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 848d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 849d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 850d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 851d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8524296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8534296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8544296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8554296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 859d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 86789935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 86889935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 877d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 883539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 884539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 88614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 95782ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 95882ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 95982ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 98114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1020a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1021a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1022a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1023a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1024a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1025a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 103414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 106614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1085bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 108929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10935bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10945bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10965bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 109714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 11025bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 11095bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1110bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 11145bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11155bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1116f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 112014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 112929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 113029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1134bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1135bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1136bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 114229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 114329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 114429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 114529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 114629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 114729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 114829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 114929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 115029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 115129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 115229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 115329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 115429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 115529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 115629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 115729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 115829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 115929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 116329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1189f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1192f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12232bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12242bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12264ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12274ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 123186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 123286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 123486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 123586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 123786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 123886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 123986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 124086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 124386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 124539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 124639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 124739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 124839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 124939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 125039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 125239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 125339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 125439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 125539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 125739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 125839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1259447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 126039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1261447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 126239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 12638636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12648636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(enabled); 126539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 12668636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll = new FastScroller(this, mFastScrollStyle); 12678636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(true); 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 126926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1270b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 127126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 12728636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12738636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.updateLayout(); 12748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12768636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 12778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 12788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Specifies the style of the fast scroller decorations. 12798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * 12808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @param styleResId style resource containing fast scroller properties 12818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @see android.R.styleable#FastScroll 12828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 12838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette public void setFastScrollStyle(int styleResId) { 12848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 12858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScrollStyle = styleResId; 12868636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } else { 12878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setStyle(styleResId); 128826bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 129286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 129386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 129420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 129586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 129686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 129786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 129886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 129920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 130086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 130186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 130220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 130320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 130420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 130539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 130639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 130739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 130839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 130939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 131039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 131239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 131439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 131539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 131639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 131739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 131839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 131939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 132039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 132239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 13278636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13288636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setAlwaysShow(alwaysShow); 132920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 133339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 133439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 133539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 133639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 133720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 134086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 134120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 134286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 134320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 134420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 134520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 13468636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1347b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1348b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13498636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled() && mFastScroll.isAlwaysShowEnabled(); 1350b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 135120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 135320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 135420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 13558636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.isEnabled()) { 13568636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return Math.max(super.getVerticalScrollbarWidth(), mFastScroll.getWidth()); 135720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 135920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 136120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 136286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 136386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13698636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1370b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1371b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13728636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled(); 1373b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 137620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 137720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 137820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 13798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(position); 138120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 138426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 138526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 138626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 13878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollBarStyle(style); 138926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13930ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1398b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 14120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14498636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 14508636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onScroll(mFirstPosition, getChildCount(), mItemCount); 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14550a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1458a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1464d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1465d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1466d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1467d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14689c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14694e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1470d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1471d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14724e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14734e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14744e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14754e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14764e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14778a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14788a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14798a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14808a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14818a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14828a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14838a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14848a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14858a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14868a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1487fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1488fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1489fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 149080943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1491fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1492fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1493fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 149480943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1495fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1496a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1497a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1498a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 149976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette int getSelectionModeForAccessibility() { 150076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette final int choiceMode = getChoiceMode(); 150176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette switch (choiceMode) { 150276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_NONE: 150376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 150476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_SINGLE: 150576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_SINGLE; 150676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE: 150776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE_MODAL: 150876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_MULTIPLE; 150976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette default: 151076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 151176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette 1514a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1515a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 151648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 151748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 151848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1519a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1520a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1521fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1522a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1523a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1524a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1526a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1528fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1529a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1530a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1531a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1532a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1533a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1534a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 153548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15368a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15378a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15385b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 15395b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 15405b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 15415b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 15425b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 15435b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15445b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 15455b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15465b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15475b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15485b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15495b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15505b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15515b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15525b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15535b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16186bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16308eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable( 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1674a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16752614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 167714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1697a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16982614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 170043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 170143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 170214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 170343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 170443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 170543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 170643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 170714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1708f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1720a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17212614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 172343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 172443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 172543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 172643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 172743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 172814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1762f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1772e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1773e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1774e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1775e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1776e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1777e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1778e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1779e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1780e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1781e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1782e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1783e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1784e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1785e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1786e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 178799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17987becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17997becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 18007becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 18017becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 18027becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 18037becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 18047becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 18057becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 18067becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 18077becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 181099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 181199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 181299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 181399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 181499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 181599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1834a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1835a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18369a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18379a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18389a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18399a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 184014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18419a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18429a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18439a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18449a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18459a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18469a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18472614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1849335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1850335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1851335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1852335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1867e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1876079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1878e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18952614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18962614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1897a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1898a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1899a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1900a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1901a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1906d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1907d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 19130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 195331986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1954b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1955b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1956b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1957b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1958b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1959b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1978161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1980e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1986079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20300b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 20310b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20510b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20590b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20968fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2110da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2111da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2112da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2113da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2114ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2115da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2116da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2117ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2118da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2119da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2122d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2123d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2124d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2125d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 21304b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette final int childCount = getChildCount(); 2131f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2132f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2133f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2134f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2135f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2136f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21370ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 21384b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette // TODO: Move somewhere sane. This doesn't belong in onLayout(). 21394b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette if (mFastScroll != null) { 21404b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette mFastScroll.onItemCountChanged(childCount, mItemCount); 21412c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2142f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2156d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2157d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2158d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2159d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2160d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2161d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2162d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2163d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2170d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2171d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21755d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21763e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @param focusedView view that holds accessibility focus 21773e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @return direct child that contains accessibility focus, or null if no 21785d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21795d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21803e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette View getAccessibilityFocusedChild(View focusedView) { 21815d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21825d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 21835d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 21845d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 21855d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21865d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21875d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 21885d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21895d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21905d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21915d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 21925d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21935d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 229321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 229421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 229821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 22995fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 23005fade8c69aef621312232ef0647502d7a63990b9Romain Guy 230121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2303595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Check whether we have a transient state view. Attempt to re-bind the 2304595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // data and discard the view if we fail. 2305595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View transientView = mRecycler.getTransientStateView(position); 2306595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transientView != null) { 2307ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final LayoutParams params = (LayoutParams) transientView.getLayoutParams(); 2308ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2309ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If the view type hasn't changed, attempt to re-bind the data. 2310ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (params.viewType == mAdapter.getItemViewType(position)) { 2311ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final View updatedView = mAdapter.getView(position, transientView, this); 2312ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2313ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If we failed to re-bind the data, scrap the obtained view. 2314ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (updatedView != transientView) { 2315e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(updatedView, position); 2316ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette mRecycler.addScrapView(updatedView, position); 2317ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette } 2318595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 2319595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 2320595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Scrap view implies temporary detachment. 2321595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette isScrap[0] = true; 2322595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette return transientView; 2323539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2324539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2325595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View scrapView = mRecycler.getScrapView(position); 2326595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View child = mAdapter.getView(position, scrapView, this); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2329595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, return scrap to the heap. 2330079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 233121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2332a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 23331e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2334a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2336595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23374213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2338595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mCacheColorHint != 0) { 2339595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setDrawingCacheBackgroundColor(mCacheColorHint); 2340595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23414213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2342595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 2343595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2346e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(child, position); 2347aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2348c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2349c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2350c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2351c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2352b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2353b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2354b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2355c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2356c1d7e770e123adfa992d013fa294693d077cbc78alanv 23575fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23585fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2362e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette private void setItemViewLayoutParams(View child, int position) { 2363e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2364e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette LayoutParams lp; 2365e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (vlp == null) { 2366e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateDefaultLayoutParams(); 2367e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else if (!checkLayoutParams(vlp)) { 2368e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateLayoutParams(vlp); 2369e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else { 2370e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) vlp; 2371e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2372e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2373e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (mAdapterHasStableIds) { 2374e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.itemId = mAdapter.getItemId(position); 2375e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2376e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.viewType = mAdapter.getItemViewType(position); 2377e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette child.setLayoutParams(lp); 2378e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2379e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2380c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2381c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 238250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 238350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 238450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 238550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 238650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 238750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 238850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 238950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 239050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 239150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 239250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 239350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2394c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2395c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2396c1d7e770e123adfa992d013fa294693d077cbc78alanv 2397c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23985b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2399c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2400c1d7e770e123adfa992d013fa294693d077cbc78alanv 2401c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2402c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2403fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2404fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2405fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2406fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2407c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24089c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2409c1d7e770e123adfa992d013fa294693d077cbc78alanv 24109c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 24119c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2412c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2413c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2414c1d7e770e123adfa992d013fa294693d077cbc78alanv 24159c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 24169c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2417fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2418fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2419fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2420c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2421c1d7e770e123adfa992d013fa294693d077cbc78alanv 2422c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 24239c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 24249c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 24259c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 24269c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24279c3e0e68260fe50456996d75304b73054cbde94aalanv } 24289c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2429fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 24309c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 24319c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 24329c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24339c3e0e68260fe50456996d75304b73054cbde94aalanv } 24349c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2435fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2436fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2437c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2438c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2439fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2440fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2441fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2442c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2443c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2444fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2445c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2446c1d7e770e123adfa992d013fa294693d077cbc78alanv 2447fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2448c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2449c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2450c1d7e770e123adfa992d013fa294693d077cbc78alanv 24515b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24525b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24535b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24545b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24555b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24565b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24575b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24585b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24595b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24605b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24615b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24625b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24635b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24645b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24655b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24665b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24675b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24685b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24695b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24705b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24715b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24725b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 24735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 24745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 24755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 24765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 24775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 24805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 24815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 24825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 24855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24885b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24895b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2490079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2491079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2492079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2493079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2494079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2497e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2498e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2499e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2506a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2507079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2508079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 254920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 255020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 255120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 255220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 255320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 255420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 255520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 255620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 255720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 255820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 255920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 256020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 256120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 256220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 256320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 256420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 256520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 256620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 256720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 256820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 256920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 257020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 257120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 257220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 257320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2579d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 25808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 25818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSizeChanged(w, h, oldw, oldh); 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 260874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2612079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 26408eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable(resID)); 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2656079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2674df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2675df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2676df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2677df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2681079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2685ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2686ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2687ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2688ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2695df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2696df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2716079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2717079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2718079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2719079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2720079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2721079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2722079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2724079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2725079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2729079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2772e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2773e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2774e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2775e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2776e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2777e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27820e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 27830e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 27840e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 278782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 278882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 278982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 27906a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 27916a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 27926a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 27936a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 27946a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 279582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2802462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = true; 2803462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 28041f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 28051f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 28061f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 280721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 280821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 280921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28110e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 28120e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 28139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 28140e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 281682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2817bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 281882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 281982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 282082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 28231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 28241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 28251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28271cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 28281cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 28291cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 28301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2831d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2832d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2833d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2834d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2835d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2836d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 28374032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2838d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2839d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2840d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2841d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2842d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2843d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2844d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2845d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2846d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2847d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2848d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2849d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2850a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2851d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2852462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 2853462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = false; 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2864670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2865670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2866670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2867670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2868670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 28694032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 28704032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 28714032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 28740fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2878670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 288797566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29113a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 29123a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 29133a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 29148636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 29158636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(getVerticalScrollbarPosition()); 29163a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29173a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29183a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29341487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 29351487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 29361487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 29371487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 29381487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 29391487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29401487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 29411487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 29421487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29431487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 29441487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 29451487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29461487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 29471487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 29481487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29491487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29501487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 29580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 296429219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2977005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2978005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2979005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2980005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2981005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 29827890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 29837890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 29847890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 29857890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 29867890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 29877890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 29938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 30178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30408350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 3042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 3043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 30441e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 30451e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 3046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 30471e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 3048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 3049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 3050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3072fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 3073fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 3074fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 3075fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 3076fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 3077fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 3078fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 3079fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 3080fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 3081fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3082fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3083fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3084fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3085fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3086fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3111df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3112df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3113df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3114df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3115df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 311724d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3118dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3119dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3120dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3121df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3122dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3124dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 312645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 312745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 312845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 312945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 31898fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3200079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3201079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3202e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 325274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 325913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 326013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 326113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 326213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 326378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 327678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 328978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 329078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 329178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 330078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 330278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 330378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 330478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 330578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 330678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 330778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 330978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 331078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 331178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 331278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 331378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 331578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 331678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 331778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 331878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 331978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 332178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 332278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 332378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 332478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 332578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 332678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 332778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 332878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 332978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 333078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 333178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 333278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 333378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 333478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 333578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 333678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 333778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 333878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 334078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 334178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 334278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 334378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 334478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 334578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 334678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 334778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 334878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 334978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 335078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 335178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3352a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 335378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 335478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 335578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 335678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 335778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3358a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 335978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 336378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 336578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 336778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 336878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 336978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 337078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 337178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 337378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 337478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 337578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 337778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 337878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 337978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 338078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 338178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 338278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 338478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 338578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 338678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 338778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 338878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 338978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 339078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 339178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 339278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 339378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 339478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 339578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3396a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 339778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 339878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 339978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 340078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 340178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3402a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 340378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 340778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 340878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 34099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 34109d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 34119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 341278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 341378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 34149d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 34159d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 341678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 341778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 341878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 341978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 342078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 342178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 342278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 342378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 342478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 342578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 342678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 342778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 342978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 343078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 34348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34471e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3449637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34544032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 34554032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 34564032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 34600fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3470dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3471dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3472dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3473dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3474dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3475dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 34761fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 34771fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 34781fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 34791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 3480462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 348128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 348228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 348328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 348428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 348528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 348628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 348728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 34888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 34898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette boolean intercepted = mFastScroll.onTouchEvent(ev); 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 349482f3495b146b267f3786997752cef25310176349Romain Guy 349513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 34998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 35008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 35018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 35028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 35068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 35078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35088fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35099d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 35108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 35118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 35128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3514e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 35168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 35178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3519e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 35218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 35228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 35238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 35248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 35258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 35268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 35278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 35288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 35298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 35308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 35328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3534fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 35358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 35368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 35378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 35388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 35398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 35408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 35418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 35428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 35438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 35448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 35458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 35468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 35478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 35488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 35498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 35508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 35518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 35538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3554fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3555e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3557e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3558e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3559e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3560e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 35613d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 35623d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 35633d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 35643d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3565e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3566e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3567e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3568e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3569e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3570e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 35713d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 35723d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3573e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3574e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 35753d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3576e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3577e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3578e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 35793d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3580e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 35813d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 35823d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 35833d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 35843d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 35853d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 35863d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 35873d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 35883d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 35893d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 35903d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 35913d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3592e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 35933d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3594e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3595e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3596e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3597e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35983d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3599e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3600e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36012585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 36026f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3603e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3604e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 36053d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3606e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 36076f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 36083d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3609e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3610e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3611e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3612e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3613e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36146f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3615b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3616b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 36173d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3618e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3619e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3620e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3621e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3622e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3623e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3624e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3625e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3626e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3627e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3628e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3629e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3630e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3631e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3632e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3633e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 36358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3636e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 36378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 36388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 36398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 36408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 364174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 364274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 364374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 364474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 364574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 364674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 36473d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 36483d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 364974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 365074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 365174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 365274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 365374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 365474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 365574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 365674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 365774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 365874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 36598fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 36618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 36628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 36638fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3665e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3667e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3668e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3669e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3670e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3671e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3672e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3673e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 367474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3675e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3676e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3677e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3678e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 367974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 368074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 368174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 368274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 368374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 368474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3685e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 368674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 368774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 368874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 369374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3694e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 369574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 369674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 369774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 369874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 369974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 370074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 370174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 370274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 370374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 370474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 370574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 370674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 370974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 371074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 371174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 371274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 371374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 371474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 371574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 371674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 371774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 371874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 3719462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (!mDataChanged && !mIsDetaching && isAttachedToWindow()) { 372074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 372174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 372274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 372374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 372474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 372574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 372674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 372774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 372874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 372974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 373074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 373174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 373274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3735e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3736e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3737e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3738e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3739e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3740e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3741e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3742e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3743e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3744e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3745e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3746e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3747e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3748e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3749e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3750e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3751e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3752e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3753e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3754e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3755e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3756e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3757e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3758e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3759e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3760e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3761e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3762e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3763e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3764e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3765e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3766e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3767e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3768e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3769e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3770e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3771e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3772e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 37736198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 37746198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3775e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3776e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3777e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3778e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3779e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 37806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3783e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3784e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3785e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3787e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3789e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3790e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3791e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3793e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3794e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3795e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3797e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3798e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3799e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3800e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3801e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3804e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3805e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3807e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3810e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3811e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3814e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3815e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 381674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3817e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3819e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3821e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3822e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3823e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3824e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3826e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3828e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3829e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3830e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 38314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3832e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3834e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3835e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3836e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3837e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3838e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 38394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3840e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 38414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38429bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3843e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3844e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 38459bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3846e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3847e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3848e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3849e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 385074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3851e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3852e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3853e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3854e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 385574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3856e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3860e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3861e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3862e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3863e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38670a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 38680a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 38690a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 38700a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 38710a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 38720a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 38730a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 387833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 387933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 388033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 388133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 388233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 388333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 388433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 388533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3886275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 388733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 388833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 388933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 389033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 389133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 389233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 389333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 389433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 389533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 389633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 389733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 390407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 390507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 390607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 39099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3910a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 39129d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3913a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 391907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 392007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 392107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 39259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 39269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3927e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3928a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 39309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3931a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3932a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 393907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 394007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 394107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 394207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 394307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 394407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 394507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 394607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 394713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 394813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 394913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 395013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 395113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 395213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 395313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 395413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 395513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 395613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 395713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 395813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 395913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 396013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 396113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 396213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 396313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 396413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 396513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 396613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 396713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 396813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 396913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 397013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 397113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 397213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 397313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 397413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 397513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3977a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 39788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptHoverEvent(event)) { 3979a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 3980a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3981a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3982a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 3983a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3984a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3985a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 39890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 39911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 39921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 39931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 3994462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 399528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 399628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 399728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 399828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 399928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 400028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 400128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 40028636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptTouchEvent(ev)) { 40030ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 40064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 400879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 4009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 4010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 4011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 4012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 40154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 40164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 40174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 401979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 403113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 403213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 403379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 40344b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 40354b4f40f84e72579417604143e5f42115769649b8Romain Guy } 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 40422585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 40432585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 40442585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 40452585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 40462585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 40474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 404813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 404913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 405078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 405813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 40614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 406213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 40684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 40694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 40704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 40774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 40784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 40794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 40804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 40814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 40824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 40834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 40844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 40854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 40864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 40884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 40894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 41250046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4147d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 41488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4149d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4150d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4151d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4153d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4154d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4155d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4156d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4157d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4158d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4159d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4160b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4161b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4162d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4163d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4164d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4165d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4166d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4167b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4168d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4169d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4170d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4171d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4172d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4173d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 417479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 417879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 41799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 41810b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 41851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 41941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 41951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 41961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42031fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4206e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 42110b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4212044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4213044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42161fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42314032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 42324032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 42334032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 42344032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 42354032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42381fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 42410b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 42440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 42471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4250d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 425379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4254d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 425521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 425621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 425721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4258d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 42595e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 42605e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 42615e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 42625e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 42635e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4264d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4265d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4266d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4267d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 427279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 427379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4274d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 42764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4277d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4278d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4279d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4280d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4281d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 42837f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 42847f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 42857f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 42867f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 428779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 428879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 428979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 429079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4293637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4296637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4307637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4316d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4320d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 43299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 43309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43383cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 43393cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 43403cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 43459d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4346637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 43471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4354637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4355637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4356d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4357637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4370044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4371044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4374044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4375044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4376044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4377044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4378044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4379044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4380044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4381044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4382044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4383044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4384044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4385044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The amount of friction applied to flings. The default value 4401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * is {@link ViewConfiguration#getScrollFriction}. 4402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setFriction(float friction) { 4404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.mScroller.setFriction(friction); 4408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets a scale factor for the fling velocity. The initial scale 4412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * factor is 1.0. 4413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scale The scale factor to multiply the velocity by. 4415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setVelocityScale(float scale) { 4417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mVelocityScale = scale; 4418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Override this for better control over position scrolling. 4422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller createPositionScroller() { 4424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new PositionScroller(); 4425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4426e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed. 4430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position) { 4433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position); 4437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Number of milliseconds to use for the scroll 4450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, duration); 4456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. 4464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset) { 4470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, offset); 4474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44754032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed, but it will 4479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * stop early if scrolling further would scroll boundPosition out of 4480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view. 4481cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * 4482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param boundPosition Do not scroll if it would move this adapter 4484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * position out of view. 4485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position, int boundPosition) { 4487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position, boundPosition); 4491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4492aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll by distance pixels over duration milliseconds. 4495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param distance Distance to scroll in pixels. 4496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Duration of the scroll animation in milliseconds. 4497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollBy(int distance, int duration) { 4499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, false); 4500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4501e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollBy(int distance, int duration, boolean linear) { 4503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No sense starting to scroll if we're not going anywhere 4508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 4509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount; 4511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int topLimit = getPaddingTop(); 4512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomLimit = getHeight() - getPaddingBottom(); 45134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (distance == 0 || mItemCount == 0 || childCount == 0 || 4515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (lastPos == mItemCount && 4517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 4518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.endFling(); 4519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 4520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.startScroll(distance, duration, linear); 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Allows RemoteViews to scroll relatively to a position. 4530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollByOffset(int position) { 4532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = -1; 4533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getFirstVisiblePosition(); 4535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > 0) { 4536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getLastVisiblePosition(); 4537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45384032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index > -1) { 4540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(index - getFirstVisiblePosition()); 4541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child != null) { 4542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Rect visibleRect = new Rect(); 4543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getGlobalVisibleRect(visibleRect)) { 4544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the child is partially visible 4545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childRectArea = child.getWidth() * child.getHeight(); 4546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int visibleRectArea = visibleRect.width() * visibleRect.height(); 4547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette float visibleArea = (visibleRectArea / (float) childRectArea); 4548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float visibleThreshold = 0.75f; 4549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((position < 0) && (visibleArea < visibleThreshold)) { 4550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the top index is not perceivably visible so offset 4551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that top index as well 4552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ++index; 4553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the bottom index is not perceivably visible so offset 4555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that bottom index as well 4556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette --index; 4557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createScrollingCache() { 4565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 4566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(true); 4567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(true); 4568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = true; 4569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void clearScrollingCache() { 4573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isHardwareAccelerated()) { 4574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mClearScrollingCache == null) { 4575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mClearScrollingCache = new Runnable() { 4576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 4577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 4578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mCachingStarted) { 4579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = false; 4580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(false); 4581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 4582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(false); 4583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isAlwaysDrawnWithCacheEnabled()) { 4585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4588aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4589161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4590e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette post(mClearScrollingCache); 4592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4594e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 4597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y the amount of pixels to scroll by vertically 4599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #canScrollList(int) 4600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void scrollListBy(int y) { 4602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette trackMotionScroll(-y, -y); 4603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction Negative to check scrolling up, positive to check 4609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrolling down. 4610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if the list can be scrolled in the specified direction, 4611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * false otherwise. 4612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #scrollListBy(int) 4613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean canScrollList(int direction) { 4615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (direction > 0) { 4623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 4624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPosition = firstPosition + childCount; 4625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 4626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4631e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Track a motion scroll 4634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 4636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * began. Positive numbers mean the user's finger is moving down the screen. 4637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param incrementalDeltaY Change in deltaY from the previous event. 4638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if we're already at the beginning/end of the list and have nothing to do. 4639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 4641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 4644322171b333a1c796fcc1428a96ea1d854a3881faErik } 4645322171b333a1c796fcc1428a96ea1d854a3881faErik 4646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 46484032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4650aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // "effective padding" In this case is the amount of padding that affects 4652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // how much space should not be filled by items. If we don't clip to padding 4653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there is no effective padding. 4654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingTop = 0; 4655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingBottom = 0; 4656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingTop = listPadding.top; 4658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingBottom = listPadding.bottom; 4659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4660aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // FIXME account for grid vertical spacing too? 4662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceAbove = effectivePaddingTop - firstTop; 4663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = getHeight() - effectivePaddingBottom; 4664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceBelow = lastBottom - end; 46651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = getHeight() - mPaddingBottom - mPaddingTop; 4667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (deltaY < 0) { 4668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.max(-(height - 1), deltaY); 4669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.min(height - 1, deltaY); 4671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4672e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (incrementalDeltaY < 0) { 4674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 4675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 4677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4678e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4680e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update our guesses for where the first and last views are 4682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition == 0) { 4683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess = firstTop - listPadding.top; 4684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess += incrementalDeltaY; 4686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount == mItemCount) { 4688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess += incrementalDeltaY; 4691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4692234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollDown = (firstPosition == 0 && 4694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette firstTop >= listPadding.top && incrementalDeltaY >= 0); 4695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 4696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 4697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (cannotScrollDown || cannotScrollUp) { 4699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return incrementalDeltaY != 0; 4700e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4701e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean down = incrementalDeltaY < 0; 4703e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean inTouchMode = isInTouchMode(); 4705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (inTouchMode) { 4706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette hideSelector(); 4707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4708e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int headerViewsCount = getHeaderViewsCount(); 4710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int footerViewsStart = mItemCount - getFooterViewsCount(); 4711e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int start = 0; 4713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = 0; 4714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int top = -incrementalDeltaY; 4717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette top += listPadding.top; 4719e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getBottom() >= top) { 4723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4736e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int bottom = getHeight() - incrementalDeltaY; 4739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette bottom -= listPadding.bottom; 4741e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 4743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getTop() <= bottom) { 4745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start = i; 4748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4758e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4759e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4760e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4761e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 4763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = true; 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 4767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette detachViewsFromParent(start, count); 4768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.removeSkippedScrap(); 4769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // invalidate before moving the children to avoid unnecessary invalidate 4772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // calls to bubble up from the children all the way to the top 4773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!awakenScrollBars()) { 4774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offsetChildrenTopAndBottom(incrementalDeltaY); 4778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPosition += count; 4781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette fillGap(down); 4786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 4789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectedPosition - mFirstPosition; 4790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(mSelectedPosition, getChildAt(childIndex)); 4792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mSelectorPosition != INVALID_POSITION) { 4794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectorPosition - mFirstPosition; 4795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(INVALID_POSITION, getChildAt(childIndex)); 4797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorRect.setEmpty(); 4800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = false; 48034032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 4805e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of header views in the list. Header views are special views 4811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the top of the list that should not be recycled during a layout. 4812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of header views, 0 in the default implementation. 48144bede9e425875542976a422222510fa4056a8339Romain Guy */ 4815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeaderViewsCount() { 4816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 48174bede9e425875542976a422222510fa4056a8339Romain Guy } 481821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 481921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 4820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of footer views in the list. Footer views are special views 4821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the bottom of the list that should not be recycled during a layout. 48224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 4823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of footer views, 0 in the default implementation. 482421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 4825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getFooterViewsCount() { 4826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 482721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 48284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 48294bede9e425875542976a422222510fa4056a8339Romain Guy /** 4830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fills the gap left open by a touch-scroll. During a touch scroll, children that 4831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * remain on screen are shifted and the other ones are discarded. The role of this 4832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * method is to fill the gap thus created by performing a partial layout in the 4833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * empty space. 4834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param down true if the scroll is going down, false if it is going up 4836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void fillGap(boolean down); 4838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void hideSelector() { 4840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition != INVALID_POSITION) { 4841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLayoutMode != LAYOUT_SPECIFIC) { 4842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mSelectedPosition; 4843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 4845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mNextSelectedPosition; 4846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectedPositionInt(INVALID_POSITION); 4848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(INVALID_POSITION); 4849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedTop = 0; 4850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4852322171b333a1c796fcc1428a96ea1d854a3881faErik 4853322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 4855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 4856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of items available in the adapter 4857322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int reconcileSelectedPosition() { 4859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = mSelectedPosition; 4860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = mResurrectToPosition; 4862322171b333a1c796fcc1428a96ea1d854a3881faErik } 4863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.max(0, position); 4864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.min(position, mItemCount - 1); 4865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return position; 4866322171b333a1c796fcc1428a96ea1d854a3881faErik } 4867322171b333a1c796fcc1428a96ea1d854a3881faErik 4868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling 4870e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 4872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row containing y 4873e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract int findMotionRow(int y); 4875e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4876e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling. 4878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 4880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row closest to y 4881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int findClosestMotionRow(int y) { 4883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return INVALID_POSITION; 4886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int motionRow = findMotionRow(y); 4889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Causes all the views to be rebuilt and redrawn. 4894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void invalidateViews() { 4896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 4897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 4898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 4899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4902499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If there is a selection returns false. 4904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Otherwise resurrects the selection and returns true if resurrected. 4905499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelectionIfNeeded() { 4907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && resurrectSelection()) { 4908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 4909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes the item at the supplied position selected. 49162f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 4917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the position of the new selection 49182f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 4919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void setSelectionInt(int position); 4920ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 4921ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 4922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Attempt to bring the selection back if the user is switching from touch 4923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to trackball mode 4924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return Whether selection was set to something. 4925ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 4926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelection() { 4927ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 4928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount <= 0) { 4930ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 4931ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 4932ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 4933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedTop = 0; 4934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedPos; 4935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenTop = mListPadding.top; 4936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenBottom = mBottom - mTop - mListPadding.bottom; 4937ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 4938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int toPosition = mResurrectToPosition; 4939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean down = true; 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 4942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = toPosition; 4943bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 4944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View selected = getChildAt(selectedPos - mFirstPosition); 4945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = selected.getTop(); 4946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedBottom = selected.getBottom(); 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are scrolled, don't get in the fade 4949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedTop < childrenTop) { 4950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenTop + getVerticalFadingEdgeLength(); 4951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (selectedBottom > childrenBottom) { 4952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenBottom - selected.getMeasuredHeight() 4953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette - getVerticalFadingEdgeLength(); 4954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition < firstPosition) { 4957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Default to selecting whatever is first 4958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition; 4959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 4961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == 0) { 4964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remember the position of the first item 4965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 4966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we are scrolled at all 4967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition > 0 || top < childrenTop) { 4968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are scrolled, don't select anything that is 4969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // in the fade region 4970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenTop += getVerticalFadingEdgeLength(); 4971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (top >= childrenTop) { 4974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found a view whose top is fully visisble 4975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 4976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 4977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int itemCount = mItemCount; 4982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette down = false; 4983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + childCount - 1; 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 4986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 4987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 4988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = v.getBottom(); 4989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == childCount - 1) { 4991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 4992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 4993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenBottom -= getVerticalFadingEdgeLength(); 4994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom <= childrenBottom) { 4998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 4999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(mFlingRunnable); 5008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 5009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 5010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTouchMode = TOUCH_MODE_REST; 5012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearScrollingCache(); 5013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = selectedTop; 5014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = lookForSelectablePosition(selectedPos, down); 5015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 5016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 5017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectionInt(selectedPos); 5019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = INVALID_POSITION; 5022029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return selectedPos >= 0; 5026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void confirmCheckedPositionsById() { 5029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Clear out the positional check states, we'll rebuild it below from IDs. 5030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.clear(); 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean checkedCountChanged = false; 5033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 5034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long id = mCheckedIdStates.keyAt(checkedIndex); 5035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 5036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long lastPosId = mAdapter.getItemId(lastPos); 5038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id != lastPosId) { 5039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Look around to see if the ID is nearby. If not, uncheck it. 5040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 5041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 5042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean found = false; 5043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int searchPos = start; searchPos < end; searchPos++) { 5044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long searchId = mAdapter.getItemId(searchPos); 5045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id == searchId) { 5046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette found = true; 5047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(searchPos, true); 5048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.setValueAt(checkedIndex, searchPos); 5049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!found) { 5054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.delete(id); 5055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedIndex--; 5056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedItemCount--; 5057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedCountChanged = true; 5058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 5059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 5060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastPos, id, false); 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(lastPos, true); 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (checkedCountChanged && mChoiceActionMode != null) { 5069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode.invalidate(); 50709d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 5071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 50729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void handleDataChanged() { 5075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = mItemCount; 5076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int lastHandledItemCount = mLastHandledItemCount; 5077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastHandledItemCount = mItemCount; 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 5080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette confirmCheckedPositionsById(); 5081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: In the future we can recycle these views based on stable ID instead. 5084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.clearTransientStateViews(); 5085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 5087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int newPos; 5088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectablePos; 5089029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Find the row we are supposed to sync to 5091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 5092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update this first, since setNextSelectedPositionInt inspects it 5093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 5097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mForceTranscriptScroll) { 5101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mForceTranscriptScroll = false; 5102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listBottom = getHeight() - getPaddingBottom(); 5107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastChild = getChildAt(childCount - 1); 5108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFirstPosition + childCount >= lastHandledItemCount && 5110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= listBottom) { 5111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Something new came in and we didn't scroll; give the user a clue that 5115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there's something new. 5116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette awakenScrollBars(); 5117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mSyncMode) { 5120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_SELECTED_POSITION: 5121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isInTouchMode()) { 5122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We saved our state when not in touch mode. (We know this because 5123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 5124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // restore in touch mode. Just leave mSyncPosition as it is (possibly 5125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // adjusting if the available range changed) and return. 5126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we can find a position in the new data with the same 5132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // id as the old selection. This will change mSyncPosition. 5133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = findSyncPosition(); 5134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= 0) { 5135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found it. Now verify that new selection is still selectable 5136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos == newPos) { 5138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Same row id is selected 5139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = newPos; 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSyncHeight == getHeight()) { 5142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are at the same height as when we saved state, try 5143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to restore the scroll position too. 5144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are not the same height as when the selection was saved, so 5147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // don't try to restore the exact position 5148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SET_SELECTION; 5149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Restore selection 5152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(newPos); 5153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_FIRST_POSITION: 5159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Leave mSyncPosition as it is -- just pin to available range 5160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5165ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 5166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 5168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We couldn't find matching data -- try to use the same position 5169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = getSelectedItemPosition(); 5170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pin position to the available range 5172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= count) { 5173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = count - 1; 5174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos < 0) { 5176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = 0; 5177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we select something selectable -- first look down 5180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Looking down didn't work -- try looking up 5187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, false); 5188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We already know where we want to resurrect the selection 5196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mResurrectToPosition >= 0) { 5197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Nothing is selected. Give up and reset everything. 5204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 5205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedPosition = INVALID_POSITION; 5206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedRowId = INVALID_ROW_ID; 5207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedPosition = INVALID_POSITION; 5208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedRowId = INVALID_ROW_ID; 5209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorPosition = INVALID_POSITION; 5212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkSelectionChanged(); 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void onDisplayHint(int hint) { 5217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onDisplayHint(hint); 5218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (hint) { 5219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case INVISIBLE: 5220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case VISIBLE: 5225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing()) { 5226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopupHidden = hint == INVISIBLE; 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Removes the filter window 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void dismissPopup() { 5237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null) { 5238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.dismiss(); 5239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Shows the filter window 5244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void showPopup() { 5246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we have a window before showing the popup 5247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getWindowVisibility() == View.VISIBLE) { 5248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionPopup(); 5250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we get focus if we are showing the popup 5251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkFocus(); 5252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void positionPopup() { 5256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int screenHeight = getResources().getDisplayMetrics().heightPixels; 5257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int[] xy = new int[2]; 5258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getLocationOnScreen(xy); 5259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: The 20 below should come from the theme 5260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: And the gravity should be defined in the theme as well 5261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!mPopup.isShowing()) { 5263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 5264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette xy[0], bottomGap); 5265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.update(xy[0], bottomGap, -1, -1); 5267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 52704e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 5271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * What is the distance between the source and destination rectangles given the direction of 5272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * focus navigation between them? The direction basically helps figure out more quickly what is 5273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * self evident by the relationship between the rects... 5274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param source the source rectangle 5276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param dest the destination rectangle 5277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction the direction 5278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the distance between the rectangles 52794e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 5280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static int getDistance(Rect source, Rect dest, int direction) { 5281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int sX, sY; // source x, y 5282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int dX, dY; // dest x, y 5283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (direction) { 5284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_RIGHT: 5285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right; 5286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left; 5288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_DOWN: 5291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.bottom; 5293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top; 5295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_LEFT: 5297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left; 5298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.right; 5300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_UP: 5303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top; 5305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.bottom; 5307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_FORWARD: 5309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_BACKWARD: 5310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right + source.width() / 2; 5311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 5316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("direction must be one of " 5317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 5318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 53194e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 5320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaX = dX - sX; 5321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaY = dY - sY; 5322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return deltaY * deltaY + deltaX * deltaX; 5323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean isInFilterMode() { 5327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 53284e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sends a key to the text filter window 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param keyCode The keycode for the event 5334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param event The actual key event 5335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return True if the text filter handled the event, false otherwise. 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!acceptFilter()) { 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean handled = false; 5344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean okToSend = true; 5345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (keyCode) { 5346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_UP: 5347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_DOWN: 5348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_LEFT: 5349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_RIGHT: 5350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_CENTER: 5351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_ENTER: 5352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_BACK: 5355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && mPopup.isShowing()) { 5356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (event.getAction() == KeyEvent.ACTION_DOWN 5357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.getRepeatCount() == 0) { 5358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent.DispatcherState state = getKeyDispatcherState(); 5359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (state != null) { 5360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette state.startTracking(event, this); 5361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (event.getAction() == KeyEvent.ACTION_UP 5364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.isTracking() && !event.isCanceled()) { 5365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setText(""); 5367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_SPACE: 5372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Only send spaces once we are filtered 5373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = mFiltered; 5374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (okToSend) { 5378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent forwardEvent = event; 5381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (forwardEvent.getRepeatCount() > 0) { 5382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int action = event.getAction(); 5386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (action) { 5387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_DOWN: 5388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 5389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_UP: 5392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 5393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_MULTIPLE: 5396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyMultiple(keyCode, count, event); 5397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return handled; 5401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Return an InputConnection for editing of the filter text. 5405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isTextFilterEnabled()) { 5409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPublicInputConnection == null) { 5410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDefInputConnection = new BaseInputConnection(this, false); 5411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPublicInputConnection = new InputConnectionWrapper(outAttrs); 5412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 5414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 5415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mPublicInputConnection; 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private class InputConnectionWrapper implements InputConnection { 5421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final EditorInfo mOutAttrs; 5422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection mTarget; 542314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnectionWrapper(EditorInfo outAttrs) { 5425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOutAttrs = outAttrs; 5426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 542714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection getTarget() { 5429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) { 5430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget; 5433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 543414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean reportFullscreenMode(boolean enabled) { 5437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since it is 5438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the "real" one the IME is talking with. 5439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.reportFullscreenMode(enabled); 5440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performEditorAction(int editorAction) { 5444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The editor is off in its own window; we need to be 5445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the one that does this. 5446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (editorAction == EditorInfo.IME_ACTION_DONE) { 5447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette InputMethodManager imm = (InputMethodManager) 5448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (imm != null) { 5450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette imm.hideSoftInputFromWindow(getWindowToken(), 0); 545114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 545314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 545514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 545614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean sendKeyEvent(KeyEvent event) { 5459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since the filter 5460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // text view may not be shown in a window so has 5461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // no ViewAncestor to dispatch events with. 5462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.sendKeyEvent(event); 546314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 546414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextBeforeCursor(int n, int flags) { 5467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextBeforeCursor(n, flags); 5469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextAfterCursor(int n, int flags) { 5473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextAfterCursor(n, flags); 547514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getSelectedText(int flags) { 5479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getSelectedText(flags); 5481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5482539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public int getCursorCapsMode(int reqModes) { 5485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getCursorCapsMode(reqModes); 5487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().getExtractedText(request, flags); 5492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().deleteSurroundingText(beforeLength, afterLength); 5497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingText(CharSequence text, int newCursorPosition) { 5501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingText(text, newCursorPosition); 5502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingRegion(int start, int end) { 5506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingRegion(start, end); 5507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean finishComposingText() { 5511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget == null || mTarget.finishComposingText(); 5512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitText(CharSequence text, int newCursorPosition) { 5516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitText(text, newCursorPosition); 5517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCompletion(CompletionInfo text) { 5521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCompletion(text); 5522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCorrection(CorrectionInfo correctionInfo) { 5526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCorrection(correctionInfo); 5527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setSelection(int start, int end) { 5531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setSelection(start, end); 5532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performContextMenuAction(int id) { 5536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performContextMenuAction(id); 5537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean beginBatchEdit() { 5541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().beginBatchEdit(); 5542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean endBatchEdit() { 5546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().endBatchEdit(); 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean clearMetaKeyStates(int states) { 5551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().clearMetaKeyStates(states); 5552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performPrivateCommand(String action, Bundle data) { 5556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performPrivateCommand(action, data); 555743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 555843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 555943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For filtering we proxy an input connection to an internal text editor, 5562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * and this allows the proxying to happen. 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean checkInputConnectionProxy(View view) { 5566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view == mTextFilter; 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Creates the window for the text filter and populates it with an EditText field; 5571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param animateEntrance true if the window should appear with an animation 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createTextFilter(boolean animateEntrance) { 5575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup == null) { 5576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PopupWindow p = new PopupWindow(getContext()); 5577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setFocusable(false); 5578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setTouchable(false); 5579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setContentView(getTextFilterInput()); 5581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setWidth(LayoutParams.WRAP_CONTENT); 5582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setHeight(LayoutParams.WRAP_CONTENT); 5583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setBackgroundDrawable(null); 5584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup = p; 5585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getViewTreeObserver().addOnGlobalLayoutListener(this); 5586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mGlobalLayoutListenerAddedFilter = true; 5587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (animateEntrance) { 5589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 5590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private EditText getTextFilterInput() { 5596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTextFilter == null) { 5597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter = (EditText) layoutInflater.inflate( 5599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette com.android.internal.R.layout.typing_filter, null); 5600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // For some reason setting this as the "real" input type changes 5601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the text view in some way that it doesn't work, and I don't 5602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // want to figure out why this is. 5603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.addTextChangedListener(this); 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTextFilter; 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clear the text filter. 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void clearTextFilter() { 5615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered) { 5616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getTextFilterInput().setText(""); 5617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns if the ListView currently has a text filter. 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasTextFilter() { 5628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 5629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onGlobalLayout() { 5633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isShown()) { 5634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the popup if we are filtered 5635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 5636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Hide the popup when we are no longer visible 5640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void beforeTextChanged(CharSequence s, int start, int count, int after) { 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Performs 5657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the actual filtering as the text changes, and takes care of hiding and 5658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * showing the popup displaying the currently entered filter text. 5659b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5660b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onTextChanged(CharSequence s, int start, int before, int count) { 5662c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int length = s.length(); 5665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean showing = mPopup.isShowing(); 5666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!showing && length > 0) { 5667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the filter popup if necessary 5668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = true; 5670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (showing && length == 0) { 5671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove the filter popup if the user has cleared all text 5672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter instanceof Filterable) { 5676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Filter f = ((Filterable) mAdapter).getFilter(); 5677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Filter should not be null when we reach this part 5678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (f != null) { 5679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette f.filter(s, this); 5680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalStateException("You cannot call onTextChanged with a non " 5682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "filterable adapter"); 5683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5685c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5686b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void afterTextChanged(Editable s) { 5694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5695f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onFilterComplete(int count) { 5698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && count > 0) { 5699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette resurrectSelection(); 5701f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5703f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5709f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 5712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new LayoutParams(p); 5713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5714f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams generateLayoutParams(AttributeSet attrs) { 5717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(getContext(), attrs); 5718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5719f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 5722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return p instanceof AbsListView.LayoutParams; 5723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57565be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 57575be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 57585be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 57595be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 57605be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 576552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 576652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 576752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 576852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 576952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 577052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 577152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 577252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57817b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views (excluding headers and footers) held by this AbsListView into the supplied 5788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * List. This includes views displayed on the screen as well as views stored in AbsListView's 5789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * internal view recycler. 5790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param views A list into which to put the reclaimed views 5792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void reclaimViews(List<View> views) { 5794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childCount = getChildCount(); 5795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette RecyclerListener listener = mRecycler.mRecyclerListener; 5796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Reclaim views on screen 5798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 5800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 5801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't reclaim header or footer views, or views that should be ignored 5802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 5803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.add(child); 5804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.setAccessibilityDelegate(null); 5805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (listener != null) { 5806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pretend they went through the scrap heap 5807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette listener.onMovedToScrapHeap(child); 5808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.reclaimScrapViews(views); 5812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeAllViewsInLayout(); 5813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void finishGlows() { 5816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mEdgeGlowTop != null) { 5817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowTop.finish(); 5818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowBottom.finish(); 5819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * through the specified intent. 5825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsAdapter(Intent intent) { 5828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 5829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 5830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 5832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcOld = new Intent.FilterComparison( 5833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.getRemoteViewsServiceIntent()); 5834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (fcNew.equals(fcOld)) { 5835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 5839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, create a new RemoteViewsAdapter for binding 5840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter.isDataReady()) { 5842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 5843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 5848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param handler The OnClickHandler to use when inflating RemoteViews. 5850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 5852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 5854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 5855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 5856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 5858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 5863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * connected yet. 5864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void deferNotifyDataSetChanged() { 5867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = true; 5868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter connects to the RemoteViewsService. 5872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onRemoteAdapterConnected() { 5875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != mAdapter) { 5876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 5877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDeferNotifyDataSetChanged) { 5878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.notifyDataSetChanged(); 5879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 5880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mRemoteAdapter != null) { 5883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.superNotifyDataSetChanged(); 5884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 5885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter disconnects from the RemoteViewsService. 5891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onRemoteAdapterDisconnected() { 5894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the remote adapter disconnects, we keep it around 5895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // since the currently displayed items are still cached. 5896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Further, we want the service to eventually reconnect 5897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // when necessary, as triggered by this view requesting 5898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // items from the Adapter. 5899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * being displayed by the AbsListView. 5904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setVisibleRangeHint(int start, int end) { 5906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setVisibleRangeHint(start, end); 5908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the recycler listener to be notified whenever a View is set aside in 5913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the recycler for later reuse. This listener can be used to free resources 5914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to the View. 5915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param listener The recycler listener to be notified of views set aside 5917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * in the recycler. 5918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 5920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 5921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRecyclerListener(RecyclerListener listener) { 5923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.mRecyclerListener = listener; 5924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onChanged() { 5929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onChanged(); 5930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 5931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 5932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onInvalidated() { 5937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onInvalidated(); 5938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 5939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 5940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * selects and deselects list items. 5949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public interface MultiChoiceModeListener extends ActionMode.Callback { 5951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called when an item is checked or unchecked during selection mode. 5953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param mode The {@link ActionMode} providing the selection mode 5955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Adapter position of the item that was checked or unchecked 5956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param id Adapter ID of the item that was checked or unchecked 5957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param checked <code>true</code> if the item is now checked, <code>false</code> 5958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * if the item is now unchecked. 5959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 5961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked); 5962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private MultiChoiceModeListener mWrapped; 5966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setWrapped(MultiChoiceModeListener wrapped) { 5968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped = wrapped; 5969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasWrappedCallback() { 5972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped != null; 5973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mWrapped.onCreateActionMode(mode, menu)) { 5978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Initialize checked graphic state? 5979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(false); 5980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 5981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onPrepareActionMode(mode, menu); 5988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onActionItemClicked(mode, item); 5993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onDestroyActionMode(ActionMode mode) { 5997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onDestroyActionMode(mode); 5998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode = null; 5999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ending selection mode means deselecting everything. 6001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearChoices(); 6002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 6004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 6005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(true); 6008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked) { 6013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If there are no items selected we no longer need the selection mode. 6016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getCheckedItemCount() == 0) { 6017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mode.finish(); 6018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * AbsListView extends LayoutParams to provide a place to hold the view type. 6024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static class LayoutParams extends ViewGroup.LayoutParams { 6026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * View type for this view, as returned by 6028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link android.widget.Adapter#getItemViewType(int) } 6029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list", mapping = { 6031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 6032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 6033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }) 6034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewType; 6035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When this boolean is set, the view has been added to the AbsListView 6038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at least once. It is used to know whether headers/footers have already 6039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * been added to the list view and whether they should be treated as 6040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * recycled views or not. 6041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean recycledHeaderFooter; 6044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When an AbsListView is measured with an AT_MOST measure spec, it needs 6047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to obtain children views to measure itself. When doing so, the children 6048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * are not attached to the window, but put in the recycler which assumes 6049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * they've been attached before. Setting this flag will force the reused 6050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view to be attached to the window rather than just attached to the 6051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * parent. 6052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean forceAdd; 6055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position the view was removed from when pulled out of the 6058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrap heap. 6059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrappedFromPosition; 6062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The ID the view represents 6065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long itemId = -1; 6067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(Context c, AttributeSet attrs) { 6069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(c, attrs); 6070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h) { 6073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h, int viewType) { 6077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette this.viewType = viewType; 6079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(ViewGroup.LayoutParams source) { 6082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(source); 6083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A RecyclerListener is used to receive a notification whenever a View is placed 6088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * inside the RecycleBin's scrap heap. This listener is used to free resources 6089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to Views placed in the RecycleBin. 6090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static interface RecyclerListener { 6095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Indicates that the specified View was moved into the recycler's scrap heap. 6097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The view is not displayed on screen any more and any expensive resource 6098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated with the view should be discarded. 6099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param view 6101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void onMovedToScrapHeap(View view); 6103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 6107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 6108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * start of a layout. By construction, they are displaying current information. At the end of 6109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 6110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * could potentially be used by the adapter to avoid allocating views unnecessarily. 6111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class RecycleBin { 6116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private RecyclerListener mRecyclerListener; 6117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position of the first view stored in mActiveViews. 6120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mFirstActivePosition; 6122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views that were on screen at the start of layout. This array is populated at the start of 6125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 6126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views in mActiveViews represent a contiguous range of Views, with position of the first 6127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view store in mFirstActivePosition. 6128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private View[] mActiveViews = new View[0]; 6130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Unsorted views that can be used by the adapter as a convert view. 6133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View>[] mScrapViews; 6135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mViewTypeCount; 6137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mCurrentScrap; 6139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mSkippedScrap; 6141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private SparseArray<View> mTransientStateViews; 6143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private LongSparseArray<View> mTransientStateViewsById; 6144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setViewTypeCount(int viewTypeCount) { 6146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTypeCount < 1) { 6147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 6148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection unchecked 6150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 6151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; i++) { 6152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews[i] = new ArrayList<View>(); 6153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mViewTypeCount = viewTypeCount; 6155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap = scrapViews[0]; 6156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews = scrapViews; 6157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void markChildrenDirty() { 6160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).forceLayout(); 6165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).forceLayout(); 6173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViews.size(); 6178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.valueAt(i).forceLayout(); 6180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById != null) { 6183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViewsById.size(); 6184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.valueAt(i).forceLayout(); 6186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean shouldRecycleViewType(int viewType) { 6191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return viewType >= 0; 6192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clears the scrap heap. 6196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clear() { 6198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 62003e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 62053e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearTransientStateViews(); 6210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fill ActiveViews with all of the children of the AbsListView. 6214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param childCount The minimum number of views mActiveViews should hold 6216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param firstActivePosition The position of the first view that will be stored in 6217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews 6218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void fillActiveViews(int childCount, int firstActivePosition) { 6220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mActiveViews.length < childCount) { 6221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mActiveViews = new View[childCount]; 6222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstActivePosition = firstActivePosition; 6224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection MismatchedReadAndWriteOfArray 6226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't put header or footer views into the scrap heap 6231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 6233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // However, we will NOT place them into scrap views. 6234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = child; 6235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Get the view corresponding to the specified position. The view will be removed from 6241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews if it is found. 6242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The position to look up in mActiveViews 6244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The view if it is found, null otherwise 6245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getActiveView(int position) { 6247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = position - mFirstActivePosition; 6248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >=0 && index < activeViews.length) { 6250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View match = activeViews[index]; 6251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[index] = null; 6252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return match; 6253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getTransientStateView(int position) { 6258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(position); 6260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViewsById.get(id); 6261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.remove(id); 6262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = mTransientStateViews.indexOfKey(position); 6266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0) { 6267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViews.valueAt(index); 6268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.removeAt(index); 6269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Dumps and fully detaches any currently saved views with transient 6277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * state. 6278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clearTransientStateViews() { 6280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> viewsByPos = mTransientStateViews; 6281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsByPos != null) { 6282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsByPos.size(); 6283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsByPos.valueAt(i), false); 6285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsByPos.clear(); 6287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> viewsById = mTransientStateViewsById; 6290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsById != null) { 6291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsById.size(); 6292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsById.valueAt(i), false); 6294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsById.clear(); 6296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A view from the ScrapViews collection. These are unordered. 6301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getScrapView(int position) { 6303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mCurrentScrap, position); 6305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 63063e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int whichScrap = mAdapter.getItemViewType(position); 6307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mScrapViews[whichScrap], position); 6309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts a view into the list of scrap views. 6316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * <p> 6317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * with transient state will be preserved for later retrieval. 6319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scrap The view to add 6321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The view's position within its parent 6322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void addScrapView(View scrap, int position) { 6324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 6325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp == null) { 6326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = position; 6330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove but don't scrap header or footer views, or views that 6332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // should otherwise not be recycled. 6333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewType = lp.viewType; 6334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!shouldRecycleViewType(viewType)) { 6335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.dispatchStartTemporaryDetach(); 6339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The the accessibility state of the view may change while temporary 6341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // detached and we do not allow detached views to fire accessibility 6342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // events. So we are announcing that the subtree changed giving a chance 6343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to clients holding on to a view in this subtree to refresh it. 6344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette notifyViewAccessibilityStateChangedIfNeeded( 6345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scrap views that have transient state. 6348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean scrapHasTransientState = scrap.hasTransientState(); 6349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrapHasTransientState) { 6350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the adapter has stable IDs, we can reuse the view for 6352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the same data. 6353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the data hasn't changed, we can reuse the views at 6359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // their old positions. 6360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(position, scrap); 6364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, we'll have to remove the view and start over. 6366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap = new ArrayList<View>(); 6368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.add(scrap); 6370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap.add(scrap); 6374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews[viewType].add(scrap); 6376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRecyclerListener != null) { 6379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Finish the removal of any views that skipped the scrap heap. 6386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void removeSkippedScrap() { 6388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mSkippedScrap.size(); 6392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(mSkippedScrap.get(i), false); 6394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.clear(); 6396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views remaining in mActiveViews to mScrapViews. 6400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void scrapActiveViews() { 6402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean hasListener = mRecyclerListener != null; 6404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean multipleScraps = mViewTypeCount > 1; 6405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View> scrapViews = mCurrentScrap; 6407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = count - 1; i >= 0; i--) { 6409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp 6412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette = (AbsListView.LayoutParams) victim.getLayoutParams(); 6413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int whichScrap = lp.viewType; 6414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = null; 6416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim.hasTransientState()) { 6418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store views with transient state for later use. 6419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(mFirstActivePosition + i); 6426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(id, victim); 6427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(mFirstActivePosition + i, victim); 6432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The data has changed, we can't keep this view. 6434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!shouldRecycleViewType(whichScrap)) { 6437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Discard non-recyclable views except headers/footers. 6438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store everything else on the appropriate scrap heap. 6443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (multipleScraps) { 6444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews = mScrapViews[whichScrap]; 6445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = mFirstActivePosition + i; 6449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews.add(victim); 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (hasListener) { 6452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(victim); 6453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette pruneScrapViews(); 6459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 6461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes sure that the size of mScrapViews does not exceed the size of 6463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews, which can happen if an adapter does not recycle its 6464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * views. Removes cached transient state views that no longer have 6465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * transient state. 6466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void pruneScrapViews() { 6468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int maxViews = mActiveViews.length; 6469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int size = scrapPile.size(); 6474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extras = size - maxViews; 6475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette size--; 6476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < extras; j++) { 6477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(scrapPile.remove(size--), false); 6478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 64793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6480499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> transViewsByPos = mTransientStateViews; 6482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsByPos != null) { 6483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsByPos.size(); i++) { 6484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsByPos.valueAt(i); 6485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsByPos.removeAt(i); 6488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6492a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> transViewsById = mTransientStateViewsById; 6494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsById != null) { 6495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsById.size(); i++) { 6496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsById.valueAt(i); 6497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsById.removeAt(i); 6500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65052148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 6506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts all views in the scrap heap into the supplied list. 6508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void reclaimScrapViews(List<View> views) { 6510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(mCurrentScrap); 6512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(scrapPile); 6518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65192148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 6520499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6521499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Updates the cache color hint of all known views. 6524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param color The new cache color hint. 6526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setCacheColorHint(int color) { 6528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).setDrawingCacheBackgroundColor(color); 6533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).setDrawingCacheBackgroundColor(color); 6541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Just in case this is called during a layout pass 6545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; ++i) { 6548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.setDrawingCacheBackgroundColor(color); 6551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6554499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 65553e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 65563e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int size = scrapViews.size(); 65573e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (size > 0) { 65583e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette // See if we still have a view for this position or ID. 65593e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int i = 0; i < size; i++) { 65603e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View view = scrapViews.get(i); 65613e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final AbsListView.LayoutParams params = 65623e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette (AbsListView.LayoutParams) view.getLayoutParams(); 65633e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65643e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (mAdapterHasStableIds) { 65653e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final long id = mAdapter.getItemId(position); 65663e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (id == params.itemId) { 65673e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrapViews.remove(i); 65683e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65693e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else if (params.scrappedFromPosition == position) { 65703e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(i); 65713e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 65723e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 65733e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 6574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65753e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(size - 1); 65763e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 65773e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 65783e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else { 65793e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return null; 6580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65813e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65823e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65833e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearScrap(final ArrayList<View> scrap) { 65843e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int scrapCount = scrap.size(); 65853e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int j = 0; j < scrapCount; j++) { 65863e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 65873e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65883e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65893e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65903e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearAccessibilityFromScrap(View view) { 65913e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (view.isAccessibilityFocused()) { 65923e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.clearAccessibilityFocus(); 65933e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65943e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.setAccessibilityDelegate(null); 65953e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65963e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65973e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void removeDetachedView(View child, boolean animate) { 65983e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette child.setAccessibilityDelegate(null); 65993e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette AbsListView.this.removeDetachedView(child, animate); 6600b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6601b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6602b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6603b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 6604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of the view for the specified position. 66059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 6607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return view height in pixels 66089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeightForPosition(int position) { 6610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstVisiblePosition = getFirstVisiblePosition(); 6611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = position - firstVisiblePosition; 6613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0 && index < childCount) { 6614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is on-screen, use existing view. 6615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = getChildAt(index); 6616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view.getHeight(); 6617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is off-screen, obtain & recycle view. 6619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = obtainView(position, mIsScrap); 6620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette view.measure(mWidthMeasureSpec, MeasureSpec.UNSPECIFIED); 6621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = view.getMeasuredHeight(); 6622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(view, position); 6623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return height; 6624b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6625b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6626b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 66279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the selected item and positions the selection y pixels from the top edge 6629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the ListView. (If in touch mode, the item will not be selected but it will 6630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * still be positioned appropriately.) 6631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Index (starting at 0) of the data item to be selected. 6633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y The distance from the top edge of the ListView (plus padding) that the 6634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * item will be positioned. 6635f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setSelectionFromTop(int position, int y) { 6637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter == null) { 6638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6639a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6640a798170f2abe198f806b12dd904830bc25257525Adam Powell 6641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 6642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = lookForSelectablePosition(position, true); 6643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(position); 6645f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = position; 6648f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6649f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 6652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = mListPadding.top + y; 6653f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 6655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = position; 6656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncRowId = mAdapter.getItemId(position); 6657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 6660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 6661f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6665f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract positon scroller used to handle smooth scrolling. 66689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static abstract class AbsPositionScroller { 6670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position); 6671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position, int boundPosition); 6672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset); 6673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset, int duration); 6674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void stop(); 6675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6676079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Default position scroller that simulates a fling. 6679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class PositionScroller extends AbsPositionScroller implements Runnable { 6681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int SCROLL_DURATION = 200; 6682539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_POS = 1; 6684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_POS = 2; 6685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_BOUND = 3; 6686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_BOUND = 4; 6687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_OFFSET = 5; 66889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mMode; 6690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mTargetPos; 6691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mBoundPos; 6692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mLastSeenPos; 6693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mScrollDuration; 6694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final int mExtraScroll; 66959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mOffsetFromTop; 66979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PositionScroller() { 6699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 67009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position) { 6704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 67059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 67249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - clampedPosition + 1; 6729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = clampedPosition - lastPos + 1; 6732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 6733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 6735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 6742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 67469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6749539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position, final int boundPosition) { 6752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6753539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosition == INVALID_POSITION) { 6755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 67579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position, boundPosition); 6764f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6767f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6773539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromLast = lastPos - boundPosition; 6782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromLast < 1) { 6783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6785728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 67860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = firstPos - clampedPosition + 1; 6788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromLast - 1; 6789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_BOUND; 6792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromFirst = boundPosition - firstPos; 6798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromFirst < 1) { 6799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = clampedPosition - lastPos + 1; 6804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromFirst - 1; 6805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_BOUND; 6808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 68119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 6814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 68159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6816595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 68219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = boundPosition; 6824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 68259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 68279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 6831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, offset, SCROLL_DURATION); 68329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(final int position, int offset, final int duration) { 6836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6837539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int postOffset = offset; 6841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, postOffset, duration); 6844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6847539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6848595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6853728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6854539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offset += getPaddingTop(); 6856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 6858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOffsetFromTop = offset; 6859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 6861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_OFFSET; 6862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTargetPos < firstPos) { 6868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - mTargetPos; 6869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTargetPos > lastPos) { 6870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = mTargetPos - lastPos; 68719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 6873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 6874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(targetTop - offset, duration, true); 6875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 68769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 6879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 6880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = screenTravelCount < 1 ? 6881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette duration : (int) (duration / screenTravelCount); 6882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 6883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 68859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scroll such that targetPos is in the visible padded region without scrolling 6889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * boundPos out of view. Assumes targetPos is onscreen. 68909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void scrollToVisible(int targetPos, int boundPos, int duration) { 6892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedTop = mListPadding.top; 6896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedBottom = getHeight() - mListPadding.bottom; 6897539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetPos < firstPos || targetPos > lastPos) { 6899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 6900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette " not visible [" + firstPos + ", " + lastPos + "]"); 6901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos < firstPos || boundPos > lastPos) { 6903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // boundPos doesn't matter, it's already offscreen. 6904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boundPos = INVALID_POSITION; 6905d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6906d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View targetChild = getChildAt(targetPos - firstPos); 6908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = targetChild.getTop(); 6909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetBottom = targetChild.getBottom(); 6910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrollBy = 0; 6911d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 6912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetBottom > paddedBottom) { 6913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetBottom - paddedBottom; 6914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetTop < paddedTop) { 6916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetTop - paddedTop; 6917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy == 0) { 6920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69221e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 6923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos >= 0) { 6924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View boundChild = getChildAt(boundPos - firstPos); 6925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTop = boundChild.getTop(); 6926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundBottom = boundChild.getBottom(); 6927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absScroll = Math.abs(scrollBy); 69289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 6930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the bottom of the screen. 6931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.max(0, boundBottom - paddedBottom); 6932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 6933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the top of the screen. 6934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.min(0, boundTop - paddedTop); 6935d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 69369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, duration); 69399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void stop() { 6943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(this); 6944539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6945539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 6948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listHeight = getHeight(); 6949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 69509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mMode) { 6952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_POS: { 6953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 1; 6954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 69559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 6957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 6961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 6962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6965595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 6967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 6968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 6969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 6970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = lastPos < mItemCount - 1 ? 6971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 69729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 6974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, mScrollDuration, true); 69759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 6977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos < mTargetPos) { 6978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 69799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 69819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_BOUND: { 6984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewIndex = 1; 6985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 69869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mBoundPos || childCount <= nextViewIndex 6988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette || firstPos + childCount >= mItemCount) { 6989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 69909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextPos = firstPos + nextViewIndex; 6992bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos == mLastSeenPos) { 6994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 6995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View nextView = getChildAt(nextViewIndex); 7000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewHeight = nextView.getHeight(); 7001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewTop = nextView.getTop(); 7002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 7003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos < mBoundPos) { 7004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 7005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration, true); 7006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = nextPos; 7008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextViewTop > extraScroll) { 7012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 7013bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7014bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7016bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7017595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_POS: { 7019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mLastSeenPos) { 7020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7023728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 70249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View firstView = getChildAt(0); 7026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstView == null) { 7027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 70289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstViewTop = firstView.getTop(); 7030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = firstPos > 0 ? 7031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 703252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 7033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 7034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos > mTargetPos) { 7038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 703952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 704152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_BOUND: { 7044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 2; 7045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 704752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 7049079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 7050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7054079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7055441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 7061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos > mBoundPos) { 7063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 7064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = listHeight - extraScroll; 7067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewBottom = lastViewTop + lastViewHeight; 7068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom > lastViewBottom) { 7069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 7070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7073441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7074441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_OFFSET: { 7076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLastSeenPos == firstPos) { 7077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7081441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7083441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int position = mTargetPos; 7086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7087441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount = 0; 7089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - position + 1; 7091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = position - lastPos; 7093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7094441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7097441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 7099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (-getHeight() * modifier); 7101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (getHeight() * modifier); 7106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(position - firstPos).getTop(); 7112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = targetTop - mOffsetFromTop; 7113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * 7114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ((float) Math.abs(distance) / getHeight())); 7115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7118441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7119441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 7121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7122441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7123441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7124441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7125441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract position scroller that handles sub-position scrolling but has no 7128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * understanding of layout. 7129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract class AbsSubPositionScroller extends AbsPositionScroller { 7131cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final int DURATION_AUTO = -1; 7132cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette 7133cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final int DURATION_AUTO_MIN = 100; 7134cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final int DURATION_AUTO_MAX = 500; 7135441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final SubScroller mSubScroller = new SubScroller(); 7137441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7138441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7139441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * The target offset in pixels between the top of the list and the top 7140441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * of the target position. 7141441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7142441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private int mOffset; 7143441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7144441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7145441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroll the minimum amount to get the target view entirely on-screen. 7146441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7147441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void scrollToPosition(final int targetPosition, final boolean useOffset, 7148441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset, final int boundPosition, final int duration) { 7149441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette stop(); 7150441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7151441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDataChanged) { 7152441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Wait until we're back in a stable state to try this. 7153441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScrollAfterLayout = new Runnable() { 7154441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7155441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7156441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition( 7157441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetPosition, useOffset, offset, boundPosition, duration); 7158441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7159441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7160441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7161441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7162441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7163cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int itemCount = getCount(); 7164cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int clampedPosition = MathUtils.constrain(targetPosition, 0, itemCount - 1); 7165441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstPosition = getFirstVisiblePosition(); 7166441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastPosition = firstPosition + getChildCount(); 7167cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int targetRow = getRowForPosition(clampedPosition); 7168441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstRow = getRowForPosition(firstPosition); 7169441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastRow = getRowForPosition(lastPosition); 7170441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (useOffset || targetRow <= firstRow) { 7171441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is top-aligned. 7172441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = offset; 7173441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else if (targetRow >= lastRow - 1) { 7174441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is bottom-aligned. 7175441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7176cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette mOffset = getHeightForPosition(clampedPosition) - listHeight; 7177441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7178441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is entirely on-screen. 7179441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7180441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7181441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7182441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette float endSubRow = targetRow; 7183441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (boundPosition != INVALID_POSITION) { 7184441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int boundRow = getRowForPosition(boundPosition); 7185bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette if (boundRow >= firstRow && boundRow < lastRow && boundRow != targetRow) { 7186441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endSubRow = computeBoundSubRow(targetRow, boundRow); 7187441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7188441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7189441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7190441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final View firstChild = getChildAt(0); 7191441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChild == null) { 7192441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7193441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7194441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7195441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstChildHeight = firstChild.getHeight(); 7196441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float startOffsetRatio; 7197441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChildHeight == 0) { 7198cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette startOffsetRatio = 0; 7199441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7200441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette startOffsetRatio = -firstChild.getTop() / (float) firstChildHeight; 7201441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7202441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 72032546fcf5c9cf16f5ffe8dcee09f4830bcf5f7e33Alan Viverette final float startSubRow = MathUtils.constrain( 72042546fcf5c9cf16f5ffe8dcee09f4830bcf5f7e33Alan Viverette firstRow + startOffsetRatio, 0, getCount()); 7205441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (startSubRow == endSubRow && mOffset == 0) { 7206441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is already in position. 7207441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7208441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7209441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7210cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final int durationMillis; 7211cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette if (duration == DURATION_AUTO) { 7212cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final float subRowDelta = Math.abs(startSubRow - endSubRow); 7213cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette durationMillis = (int) MathUtils.lerp( 7214cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette DURATION_AUTO_MIN, DURATION_AUTO_MAX, subRowDelta / getCount()); 7215cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } else { 7216cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette durationMillis = duration; 7217cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7218cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette 7219cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette mSubScroller.startScroll(startSubRow, endSubRow, durationMillis); 7220441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7221441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7222441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7223441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7224cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette /** 7225cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * Given a target row and offset, computes the sub-row position that 7226cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * aligns with the top of the list. If the offset is negative, the 7227cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * resulting sub-row will be smaller than the target row. 7228cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette */ 7229cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private float resolveOffset(int targetRow, int offset) { 7230cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // Compute the target sub-row position by finding the actual row 7231cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // indicated by the target and offset. 7232cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette int remainingOffset = offset; 7233bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette int targetHeight = getHeightForRow(targetRow); 7234cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette if (offset < 0) { 7235cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // Subtract row heights until we find the right row. 7236cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette while (targetRow > 0 && remainingOffset < 0) { 7237cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette remainingOffset += targetHeight; 7238cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetRow--; 7239cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetHeight = getHeightForRow(targetRow); 7240cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7241cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } else if (offset > 0) { 7242cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // Add row heights until we find the right row. 7243cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette while (targetRow < getCount() - 1 && remainingOffset > targetHeight) { 7244cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette remainingOffset -= targetHeight; 7245cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetRow++; 7246cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette targetHeight = getHeightForRow(targetRow); 7247cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7248441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7249441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7250441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float targetOffsetRatio; 7251cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette if (remainingOffset < 0 || targetHeight == 0) { 725200b982920222dd364e690d8856bad4caf5734ba5Alan Viverette targetOffsetRatio = 0; 7253441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7254441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetOffsetRatio = remainingOffset / (float) targetHeight; 7255441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7256441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7257cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette return targetRow + targetOffsetRatio; 7258cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette } 7259cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette 7260cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private float computeBoundSubRow(int targetRow, int boundRow) { 7261cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final float targetSubRow = resolveOffset(targetRow, mOffset); 7262441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = 0; 7263441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7264cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // The target row is below the bound row, so the end position would 7265cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette // push the bound position above the list. Abort! 7266441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (targetSubRow >= boundRow) { 7267441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return boundRow; 7268441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7269441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7270441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Compute the closest possible sub-position that wouldn't push the 7271441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // bound position's view further below the list. 7272441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7273441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int boundHeight = getHeightForRow(boundRow); 7274cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette final float boundSubRow = resolveOffset(boundRow, -listHeight + boundHeight); 7275441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7276441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return Math.max(boundSubRow, targetSubRow); 7277441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7278441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(int position) { 7281cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette scrollToPosition(position, false, 0, INVALID_POSITION, DURATION_AUTO); 7282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7285441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void start(int position, int boundPosition) { 7286cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette scrollToPosition(position, false, 0, boundPosition, DURATION_AUTO); 7287441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7288441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 7291cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette scrollToPosition(position, true, offset, INVALID_POSITION, DURATION_AUTO); 7292441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7293441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset, int duration) { 7296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToPosition(position, true, offset, INVALID_POSITION, duration); 7297441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7298441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7300441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void stop() { 7301441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette removeCallbacks(mAnimationFrame); 7302441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7303441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of a row, which is computed as the maximum height of 7306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the items in the row. 7307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param row the row index 7309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return row height in pixels 7310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getHeightForRow(int row); 7312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the row for the specified item position. 7315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 7317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the row index 7318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getRowForPosition(int position); 7320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the first item position within the specified row. 7323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param row the row 7325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the position of the first item in the row 7326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getFirstPositionForRow(int row); 7328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7329441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void onAnimationFrame() { 7330441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final boolean shouldPost = mSubScroller.computePosition(); 7331441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float subRow = mSubScroller.getPosition(); 7332441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7333441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int row = (int) subRow; 7334441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int position = getFirstPositionForRow(row); 7335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= getCount()) { 7336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Invalid position, abort scrolling. 7337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7340441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int rowHeight = getHeightForRow(row); 7341441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset = (int) (rowHeight * (subRow - row)); 7342441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int addOffset = (int) (mOffset * mSubScroller.getInterpolatedValue()); 7343cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette setSelectionFromTop(position, -offset - addOffset); 7344441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7345441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (shouldPost) { 7346441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7347441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7348441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7349441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7350441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private Runnable mAnimationFrame = new Runnable() { 7351441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7352441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7353441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette onAnimationFrame(); 7354441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7355441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7356441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7357441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7358441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7359441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroller capable of returning floating point positions. 7360441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static class SubScroller { 7362cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette private static final Interpolator INTERPOLATOR = new AccelerateDecelerateInterpolator(); 7363441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7364441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mStartPosition; 7365441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mEndPosition; 7366441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mStartTime; 7367441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mDuration; 7368441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7369441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mPosition; 7370441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mInterpolatedValue; 7371441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7372441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void startScroll(float startPosition, float endPosition, int duration) { 7373441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartPosition = startPosition; 7374441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mEndPosition = endPosition; 7375441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mDuration = duration; 7376441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7377441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartTime = AnimationUtils.currentAnimationTimeMillis(); 7378441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = startPosition; 7379441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolatedValue = 0; 7380441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7381441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7382441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public boolean computePosition() { 7383441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final long elapsed = AnimationUtils.currentAnimationTimeMillis() - mStartTime; 7384441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float value; 7385441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDuration <= 0) { 7386441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = 1; 7387441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7388441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = MathUtils.constrain(elapsed / (float) mDuration, 0, 1); 7389441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7390441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7391cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette mInterpolatedValue = INTERPOLATOR.getInterpolation(value); 7392441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = (mEndPosition - mStartPosition) * mInterpolatedValue + mStartPosition; 7393441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7394441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return elapsed < mDuration; 7395441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7396441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7397441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getPosition() { 7398441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mPosition; 7399441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7400441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7401441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getInterpolatedValue() { 7402441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mInterpolatedValue; 7403441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7404441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 74059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7406