AbsListView.java revision 76769ae02e713f50816ee67ff618b748d95050a8
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; 595d565faab21324862fa24490f116424e1b668b1dAlan Viveretteimport android.view.ViewRootImpl; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 61a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 62c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 63a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 6476769ae02e713f50816ee67ff618b748d95050a8Alan Viveretteimport android.view.accessibility.AccessibilityNodeInfo.CollectionInfo; 65441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viveretteimport android.view.animation.AccelerateDecelerateInterpolator; 66441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viveretteimport android.view.animation.AnimationUtils; 670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 70f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 71f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 72b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 73f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 74f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 75b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 77a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 79335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 80335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 85d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 86d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 87d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 98f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 102499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 103499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 106539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 107539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 23139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 23239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 23339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 23439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 261f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 26214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 26314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 26414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 265f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 267f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 268f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 288499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2982148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 309079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 310079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 312079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 313079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3690211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 425441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette SubPositionScroller mPositionScroller; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 45239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 45339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 45439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 51014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 51114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 51214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 51314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 51414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 560d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 561d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 562d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 563d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 564d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private FastScroller mFastScroll; 5908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 5918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 5928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Temporary holder for fast scroller style until a FastScroller object 5938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * is created. 5948636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 5958636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private int mFastScrollStyle; 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 597d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 6031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 6046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 606161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 6074296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 6084296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 60921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 6104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 61424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 61524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6286dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 64589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 65089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 672da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 673da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 674da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 675da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 676da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 67707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 67807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 67907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 680c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 681c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 682c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 683c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 684c1d7e770e123adfa992d013fa294693d077cbc78alanv 6854e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6874e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 688da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 689ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 690ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 691ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 692ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 693ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6960b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6970b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6980b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 699e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 700e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 701e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 702e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 703e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 704e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 705e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 706e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7379072110b8293ea3f933822df479c700d8bd9be4cquddusc * @param scrollState The current scroll state. One of 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 755e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 756e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 757e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 758e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 759e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 760e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 761e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 762e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 763e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 764e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 765e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 766e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 767e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 768e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 769e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 77539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 77639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 787617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 788617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 789617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 790617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 791617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 792617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 79539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 79639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 797617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 798617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette attrs, com.android.internal.R.styleable.AbsListView, defStyleAttr, defStyleRes); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8278636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette int fastScrollStyle = a.getResourceId(R.styleable.AbsListView_fastScrollStyle, 0); 8288636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette setFastScrollStyle(fastScrollStyle); 8298636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 83420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 83520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 840d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 841d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 842df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 843d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 844d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 845d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 846d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 847d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8484296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8494296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8504296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8514296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 856d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 86389935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 86489935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 873d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 879539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 880539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 88214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 95382ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 95482ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 95582ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 97714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1016a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1017a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1018a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1019a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1020a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1021a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 103014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 106214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1081bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 108529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10895bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10905bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10925bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 109314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 10985bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 11055bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1106bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 11105bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11115bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1112f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 111614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 112229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1130bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1131bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1132bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 113829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 113929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 114029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 114129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 114229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 114329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 114429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 114529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 114629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 114729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 114829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 114929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 115029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 115129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 115229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 115329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 115429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 115529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 115629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 115729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 115829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 115929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1185f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1188f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12192bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12202bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12224ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12234ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 122786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 122886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 122986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 123086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 123186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 123386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 123486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 123586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 123686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 123986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 124139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 124239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 124339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 124439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 124539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 124639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 124739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 124839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 124939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 125039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 125139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 125339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 125439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1255447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 125639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1257447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 125839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 12598636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12608636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(enabled); 126139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 12628636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll = new FastScroller(this, mFastScrollStyle); 12638636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(true); 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 126526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1266b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 126726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 12688636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12698636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.updateLayout(); 12708636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12718636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12728636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 12738636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 12748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Specifies the style of the fast scroller decorations. 12758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * 12768636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @param styleResId style resource containing fast scroller properties 12778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @see android.R.styleable#FastScroll 12788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 12798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette public void setFastScrollStyle(int styleResId) { 12808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 12818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScrollStyle = styleResId; 12828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } else { 12838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setStyle(styleResId); 128426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 128886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 128986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 129020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 129186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 129286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 129386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 129486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 129520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 129686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 129786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 129820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 129920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 130020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 130139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 130239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 130339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 130439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 130539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 130639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 130739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 130839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 130939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 131039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 131139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 131239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 131339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 131439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 131539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 131639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 131739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 131839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 131920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 13238636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13248636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setAlwaysShow(alwaysShow); 132520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 132939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 133039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 133139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 133239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 133320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 133686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 133720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 133886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 133920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 134020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 134120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 13428636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1343b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1344b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13458636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled() && mFastScroll.isAlwaysShowEnabled(); 1346b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 134720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 135020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 13518636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.isEnabled()) { 13528636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return Math.max(super.getVerticalScrollbarWidth(), mFastScroll.getWidth()); 135320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 135520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 135720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 135886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 135986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13658636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1366b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1367b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13688636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled(); 1369b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 137220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 137320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 137420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 13758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13768636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(position); 137720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 137820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 137920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 138026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 138126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 138226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 13838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollBarStyle(style); 138526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 138626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 138726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13890ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1394b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 14080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14458636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 14468636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onScroll(mFirstPosition, getChildCount(), mItemCount); 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14510a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1454a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14554e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14564e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14574e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14584e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1460d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1461d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1462d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1463d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14649c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1466d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1467d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14684e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14694e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14704e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14714e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14724e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14738a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14748a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14758a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14768a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14778a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14788a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14798a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14808a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14818a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14828a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1483fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1484fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1485fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 148680943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1487fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1488fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1489fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 149080943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1491fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1492a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1493a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1494a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 149576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette int getSelectionModeForAccessibility() { 149676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette final int choiceMode = getChoiceMode(); 149776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette switch (choiceMode) { 149876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_NONE: 149976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 150076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_SINGLE: 150176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_SINGLE; 150276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE: 150376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE_MODAL: 150476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_MULTIPLE; 150576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette default: 150676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 150776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 150876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 150976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette 1510a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1511a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 151248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 151348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 151448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1515a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1516a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1517fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1518a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1519a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1520a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1521a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1522a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1523a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1524fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1526a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1528a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1529a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1530a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 153148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15328a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15338a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15345b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 15355b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 15365b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 15375b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 15385b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 15395b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15405b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 15415b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15425b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15435b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15445b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15455b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15465b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15475b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15485b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15495b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16146bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16268eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable( 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1670a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16712614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1672f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 167314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1693a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16942614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1695f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 169643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 169743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 169814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 169943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 170043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 170143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 170243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 170314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1716a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17172614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1718f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 171943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 172043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 172143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 172243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 172343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 172414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1736f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1737f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1758f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1768e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1769e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1770e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1771e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1772e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1773e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1774e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1775e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1776e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1777e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1778e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1779e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1780e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1781e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1782e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 178399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17947becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17957becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17967becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17977becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17987becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17997becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 18007becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 18017becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 18027becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 18037becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 180699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 180799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 180899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 180999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 181099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 181199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1830a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1831a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18329a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18339a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18349a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18359a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 183614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18379a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18389a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18399a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18409a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18419a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18429a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18432614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1845335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1846335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1847335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1848335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1863e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1872079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1874e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18912614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18922614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1893a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1894a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1895a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1896a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1897a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1902d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1903d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 19090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 194931986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1950b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1951b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1952b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1953b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1954b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1955b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1974161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1976e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1982079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 20270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20470b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20480b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20490b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20570b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20738fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20908fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2106da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2107da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2108da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2109da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2110ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2111da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2112da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2113ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2114da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2115da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2118d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2119d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2120d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2121d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 21264b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette final int childCount = getChildCount(); 2127f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2128f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2129f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2130f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2131f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2132f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21330ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 21344b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette // TODO: Move somewhere sane. This doesn't belong in onLayout(). 21354b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette if (mFastScroll != null) { 21364b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette mFastScroll.onItemCountChanged(childCount, mItemCount); 21372c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2138f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2152d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2153d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2154d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2155d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2156d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2157d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2158d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2159d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2165d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2166d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2167d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21715d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21725d565faab21324862fa24490f116424e1b668b1dAlan Viverette * @return the direct child that contains accessibility focus, or null if no 21735d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21745d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21755d565faab21324862fa24490f116424e1b668b1dAlan Viverette View getAccessibilityFocusedChild() { 21765d565faab21324862fa24490f116424e1b668b1dAlan Viverette final ViewRootImpl viewRootImpl = getViewRootImpl(); 21775d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (viewRootImpl == null) { 21785d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21795d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21805d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21815d565faab21324862fa24490f116424e1b668b1dAlan Viverette View focusedView = viewRootImpl.getAccessibilityFocusedHost(); 21825d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (focusedView == null) { 21835d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21845d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21855d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21865d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21875d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 21885d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 21895d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 21905d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21915d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21925d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 21935d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21945d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21955d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21965d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 21975d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21985d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 229821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 229921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 23004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 230321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 23045fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 23055fade8c69aef621312232ef0647502d7a63990b9Romain Guy 230621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2308595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Check whether we have a transient state view. Attempt to re-bind the 2309595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // data and discard the view if we fail. 2310595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View transientView = mRecycler.getTransientStateView(position); 2311595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transientView != null) { 2312595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View updatedView = mAdapter.getView(position, transientView, this); 2313595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (updatedView != transientView) { 2314595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, scrap the obtained view. 2315595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette mRecycler.addScrapView(updatedView, position); 2316595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 2317595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 2318595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Scrap view implies temporary detachment. 2319595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette isScrap[0] = true; 2320595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette return transientView; 2321539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2322539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2323595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View scrapView = mRecycler.getScrapView(position); 2324595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View child = mAdapter.getView(position, scrapView, this); 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2327595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, return scrap to the heap. 2328079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 232921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2330a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 23311e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 23321e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Clear any system-managed transient state so that we can 23331e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // recycle this view and bind it to different data. 23341e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 23351e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 23361e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 23371e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2338a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2340595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23414213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2342595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mCacheColorHint != 0) { 2343595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setDrawingCacheBackgroundColor(mCacheColorHint); 2344595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23454213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2346595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 2347595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2350aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2351aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2352aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2353aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2354aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2355aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2356aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2357aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2358aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2359aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2360aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2361aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2362aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2363aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2364c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2365c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2366c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2367c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2368b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2369b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2370b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2371c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2372c1d7e770e123adfa992d013fa294693d077cbc78alanv 23735fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23745fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2378c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2379c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 238050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 238150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 238250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 238350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 238450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 238550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 238650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 238750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 238850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 238950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 239050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 239150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2392c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2393c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2394c1d7e770e123adfa992d013fa294693d077cbc78alanv 2395c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23965b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2397c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2398c1d7e770e123adfa992d013fa294693d077cbc78alanv 2399c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2400c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2401fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2402fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2403fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2404fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2405c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24069c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2407c1d7e770e123adfa992d013fa294693d077cbc78alanv 24089c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 24099c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2410c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2411c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2412c1d7e770e123adfa992d013fa294693d077cbc78alanv 24139c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 24149c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2415fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2416fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2417fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2418c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2419c1d7e770e123adfa992d013fa294693d077cbc78alanv 2420c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 24219c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 24229c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 24239c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 24249c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24259c3e0e68260fe50456996d75304b73054cbde94aalanv } 24269c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2427fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 24289c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 24299c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 24309c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24319c3e0e68260fe50456996d75304b73054cbde94aalanv } 24329c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2433fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2434fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2435c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2436c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2437fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2438fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2439fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2440c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2441c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2442fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2443c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2444c1d7e770e123adfa992d013fa294693d077cbc78alanv 2445fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2446c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2447c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2448c1d7e770e123adfa992d013fa294693d077cbc78alanv 24495b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24505b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24515b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24525b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24535b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24545b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24555b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24565b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24575b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24585b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24595b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24605b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24615b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24625b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24635b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24645b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24655b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24665b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24675b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24685b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24695b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24705b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 24715b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 24725b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 24735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 24745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 24755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 24785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 24795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 24805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 24835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2488079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2489079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2490079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2491079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2492079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2495e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2496e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2497e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2504a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2505079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2506079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 254720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 254820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 254920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 255020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 255120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 255220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 255320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 255420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 255520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 255620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 255720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 255820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 255920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 256020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 256120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 256220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 256320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 256420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 256520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 256620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 256720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 256820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 256920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 257020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 257120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2577d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 25788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 25798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSizeChanged(w, h, oldw, oldh); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 260674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2610079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 26388eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable(resID)); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2654079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2672df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2673df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2674df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2675df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2679079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2683ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2684ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2685ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2686ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2693df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2694df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2714079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2715079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2716079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2717079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2718079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2719079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2720079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2721079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2722079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2727079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2771e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2772e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2773e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2774e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2775e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27800e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 27810e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 27820e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 278582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 278682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 278782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 27886a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 27896a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 27906a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 27916a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 27926a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 279382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28001f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 28011f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 28021f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 280321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 280421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 280521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28070e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 28080e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 28099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 28100e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 281282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2813bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 281482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 281582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 281682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 28191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 28201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 28211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 28241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 28251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 28261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2827d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2828d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2829d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2830d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2831d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2832d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 28334032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2834d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2835d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2836d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2837d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2838d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2839d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2840d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2841d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2842d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2843d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2844d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2845d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2846a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2847d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2858670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2859670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2860670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2861670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2862670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 28634032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 28644032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 28654032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 28680fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2872670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 288197566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29053a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 29063a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 29073a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 29088636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 29098636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(getVerticalScrollbarPosition()); 29103a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29113a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29123a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29281487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 29291487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 29301487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 29311487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 29321487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 29331487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29341487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 29351487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 29361487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29371487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 29381487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 29391487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29401487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 29411487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 29421487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29431487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29441487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 29520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 295829219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2971005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2972005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2973005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2974005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2975005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 29767890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 29777890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 29787890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 29797890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 29807890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 29817890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 29878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 30118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30348350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 3036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 3037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 30381e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 30391e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 3040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 30411e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 3042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 3043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 3044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3066fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 3067fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 3068fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 3069fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 3070fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 3071fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 3072fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 3073fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 3074fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 3075fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3076fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3077fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3078fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3079fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3080fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3105df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3106df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3107df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3108df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3109df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 311124d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3112dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3113dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3114dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3115df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3116dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3118dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 312045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 312145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 312245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 312345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 31838fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3194079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3195079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3196e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 324674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 325313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 325413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 325513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 325613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 326478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 326578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 326778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 326878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 326978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 328978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 329078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 329178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 329978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 330078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 330378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 330478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 330578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 330678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 330778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 330978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 331078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 331178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 331278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 331378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 331578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 331678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 331778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 331878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 331978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 332078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 332178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 332278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 332378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 332478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 332578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 332678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 332778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 332878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 332978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 333078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 333178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 333278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 333578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 333678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 333778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 333878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 333978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 334078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 334178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 334278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 334378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 334478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 334578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3346a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 334778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 334878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 334978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 335078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 335178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3352a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 335378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 335778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 335978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 336178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 336278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 336378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 336478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 336578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 336678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 336778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 336878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 337178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 337278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 337378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 337478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 337578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 337678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 337778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 337978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 338078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 338178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 338278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 338378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 338478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 338578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 338678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 338778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 338878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 338978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3390a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 339178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 339278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 339378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 339478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 339578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3396a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 339778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 339878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 339978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 340178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 340278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 34039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 34049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 34059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 340678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 34089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 34099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 341078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 341178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 341278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 341378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 341478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 341578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 341678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 341778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 341878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 341978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 342078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 342178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 342378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 342478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 34288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34411e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3442637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3443637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34484032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 34494032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 34504032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 34540fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3464dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3465dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3466dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3467dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3468dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3469dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 34701fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 34711fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 34721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 34731fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 347431986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow()) { 347528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 347628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 347728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 347828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 347928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 348028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 348128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 34828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 34838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette boolean intercepted = mFastScroll.onTouchEvent(ev); 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 348882f3495b146b267f3786997752cef25310176349Romain Guy 348913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 34938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 34948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 34958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 34968fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 35008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 35018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35039d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 35048fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 35058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 35068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3508e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 35108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 35118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3513e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 35158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 35168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 35178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 35188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 35198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 35208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 35218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 35228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 35238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 35248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 35268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3528fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 35298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 35308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 35318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 35328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 35338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 35348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 35358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 35368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 35378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 35388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 35398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 35408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 35418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 35428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 35438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 35448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 35458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 35478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3548fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3549e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3551e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3552e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3553e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3554e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 35553d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 35563d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 35573d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 35583d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3559e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3560e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3561e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3562e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3563e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3564e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 35653d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 35663d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3567e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3568e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 35693d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3570e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3571e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3572e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 35733d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3574e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 35753d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 35763d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 35773d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 35783d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 35793d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 35803d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 35813d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 35823d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 35833d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 35843d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 35853d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3586e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 35873d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3588e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3589e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3590e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3591e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35923d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3593e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3594e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35952585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 35966f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3597e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3598e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 35993d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3600e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 36016f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 36023d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3603e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3604e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3605e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3606e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3607e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36086f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3609b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3610b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 36113d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3612e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3613e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3614e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3615e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3616e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3617e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3618e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3619e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3620e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3621e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3622e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3623e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3624e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3625e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3626e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3627e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 36298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3630e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 36318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 36328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 36338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 36348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 363574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 363674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 363774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 363874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 363974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 364074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 36413d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 36423d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 364374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 364474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 364574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 364674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 364774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 364874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 364974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 365074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 365174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 365274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 36538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 36558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 36568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 36578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3661e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3662e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3663e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3664e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3665e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3666e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3667e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 366874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3669e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3670e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3671e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3672e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 367374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 367474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 367574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 367674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 367774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 367874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3679e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 368074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 368174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 368274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 368474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 368674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 368774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3688e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 368974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 369074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 369174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 369274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 369374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 369474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 369574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 369674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 369774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 369874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 369974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 370074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 370374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 370474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 370574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 370674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 370774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 370874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 370974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 371074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 371174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 371274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 371331986b5b696c399b356c8819cb581441027bef36Adam Powell if (!mDataChanged && isAttachedToWindow()) { 371474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 371574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 371674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 371774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 371874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 371974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 372074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 372174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 372274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 372374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 372474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 372574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 372674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3729e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3730e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3731e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3732e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3733e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3734e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3735e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3736e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3737e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3738e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3739e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3740e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3741e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3742e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3743e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3744e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3745e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3746e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3747e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3748e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3749e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3750e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3751e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3752e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3753e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3754e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3755e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3756e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3757e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3758e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3759e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3760e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3761e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3762e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3763e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3764e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3765e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3766e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 37676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 37686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3769e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3770e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3771e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3772e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3773e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 37746198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3777e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3778e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3779e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3781e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3783e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3784e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3785e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3787e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3788e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3789e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3791e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3792e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3793e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3794e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3795e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3798e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3799e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3801e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3803e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3804e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3805e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3808e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3809e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 381074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3811e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3813e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3815e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3816e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3817e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3818e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3820e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3822e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3823e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3824e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 38254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3826e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3828e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3829e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3830e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3831e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3832e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 38334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3834e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 38354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38369bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3837e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3838e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 38399bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3840e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3841e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3842e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3843e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 384474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3845e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3846e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3847e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3848e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 384974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3850e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3853e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3854e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3855e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3856e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3857e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38610a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 38620a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 38630a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 38640a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 38650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 38660a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 38670a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 387233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 387333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 387433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 387533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 387633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 387733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 387833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 387933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3880275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 388133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 388233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 388333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 388433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 388533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 388633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 388733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 388833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 388933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 389033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 389133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 389807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 389907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 390007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 39039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3904a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 39069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3907a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 391307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 391407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 391507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 39199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 39209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3921e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3922a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 39249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3925a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3926a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 393307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 393407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 393507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 393607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 393707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 393807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 393907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 394007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 394113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 394213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 394313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 394413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 394513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 394613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 394713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 394813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 394913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 395013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 395113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 395213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 395313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 395413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 395513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 395613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 395713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 395813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 395913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 396013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 396113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 396213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 396313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 396413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 396513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 396613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 396713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 396813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 396913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3971a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 39728636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptHoverEvent(event)) { 3973a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 3974a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3975a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3976a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 3977a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3978a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3979a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 39830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39841fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 39851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 39861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 39871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 398831986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow()) { 398928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 399028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 399128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 399228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 399328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 399428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 399528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 39968636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptTouchEvent(ev)) { 39970ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 40004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 400279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 4003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 4004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 4005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 4006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 40094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 40104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 40114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 401379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 402513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 402613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 402779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 40284b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 40294b4f40f84e72579417604143e5f42115769649b8Romain Guy } 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 40362585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 40372585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 40382585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 40392585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 40402585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 40414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 404213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 404313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 404478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 405213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 40554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 405613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 40624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 40634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 40644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 40714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 40724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 40734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 40744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 40754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 40764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 40774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 40784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 40794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 40804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 40824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 40834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 41190046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4141d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 41428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4143d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4144d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4145d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4147d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4148d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4149d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4150d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4151d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4152d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4153d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4154b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4155b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4156d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4157d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4158d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4159d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4160d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4161b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4162d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4163d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4164d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4165d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4166d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4167d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 416879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 417279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 41750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 41791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 41881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 41891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 41901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41971fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4200e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 42050b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4206044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4207044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42254032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 42264032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 42274032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 42284032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 42294032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42321fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 42350b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 42380b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 42411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4244d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 424779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4248d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 424921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 425021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 425121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4252d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 42535e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 42545e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 42555e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 42565e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 42575e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4258d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4259d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4260d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4261d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42648fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 426679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 426779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4268d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 42704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4271d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4272d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4273d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4274d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4275d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 42777f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 42787f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 42797f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 42807f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 428179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 428279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 428379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 428479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4295637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4296637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4306637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4310d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4313637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4314d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 43239d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 43249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43323cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 43333cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 43343cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 43399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 43411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4346637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4347637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4350d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4354637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4357637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4364044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4365044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4368044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4369044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4370044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4371044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4372044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4373044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4374044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4375044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4376044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4377044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4378044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4379044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43821fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4394e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 43954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4399458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4400e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 44014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 440752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4408e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4409e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 44104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4415e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 44164032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 44174032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4418aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4419aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4420161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4421aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4422aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4423aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4424161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4425aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4426aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4427aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4428e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4429e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4430e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4431e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4432e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4433e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4435e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 44364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44374bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 44380061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 44390061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 44400061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 44420061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 44430061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4445458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44460061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4447458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44550061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 44584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4462e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 44634032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 44644032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4465458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4466458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4470aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4471aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4472161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4473aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4474aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4475aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4476161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4477aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4478aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4479aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4480e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4481e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4482e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4483e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4484e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4485e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4487e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 44884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44894bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 44900061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 44910061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44980061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45070061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45140061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45240061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45330061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 45364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45371fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4539e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4540e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4541322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4542322171b333a1c796fcc1428a96ea1d854a3881faErik } 4543322171b333a1c796fcc1428a96ea1d854a3881faErik 4544aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 45454032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 45464032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4547aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4548aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4549aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4550161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4551aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4552aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4553aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4554161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4555aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4556aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4557aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4558aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4559aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4560aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4561aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4562aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4563aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 45641fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 45651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 45660061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4567e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4568e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4569e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4570e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4571e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4572e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4573371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4574e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 45754bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 45760061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 45770061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 45780061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 45790061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4580e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4581e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 45820061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 45830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4584e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4585e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4586e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4587371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 45884ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 45890b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 45900b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4591371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4592234a5715309ea74757780aff6123e3144efb5b69Adam Powell 45931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4594e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4595e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4596e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4597e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4598e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4599e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4600e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4601e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4602e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4603e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4604e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4605e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4606e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4607e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4608e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4609e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4610e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4611e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4612e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4613e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4614e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4615e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4616e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4617e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4618e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4619e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4620e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4621e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4622e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4623e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4624e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4625e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4626e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4627e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4628e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4629e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4630e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4631e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4632e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4633e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4634e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4635e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4636e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4637e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4638e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4639e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4640e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4641e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4642e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4643e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4644e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4645e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4646e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4647e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4648e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4649e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4653e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 46584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 46634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 46650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 46660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46701fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46781fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 46791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46811fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 46820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46857e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 46861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4693029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 46944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4695029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4696029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 47031fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 47101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 47117e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 47130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 47171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 47194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 47200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 47291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 47340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 47350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 47360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 47381fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 47391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 47410b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 47457e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 47461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 47600b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 47681fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 47707e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 47710b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 47721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 47741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 47770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4783e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4784234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4785234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 47860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4787234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4788234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4789e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4790371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4791234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4792234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4793e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4794371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4795e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 47964032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4797e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 47984032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 47994032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 48004032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 48014032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 48024032252c997be9f5d013054dc23ace855007b3a5Adam Powell 48034032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 48044032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 48054032252c997be9f5d013054dc23ace855007b3a5Adam Powell 48064032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 48074032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 48080b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 48090b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 48100b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 48111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4812e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 48130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 48140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 48150b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 48161fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4817e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4818e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4819e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4820234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 48210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 48220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 48230b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4824e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4825e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4826e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4827e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 48354bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 48364bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 48374bede9e425875542976a422222510fa4056a8339Romain Guy */ 48384bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 48394bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 48404bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 48414bede9e425875542976a422222510fa4056a8339Romain Guy } 48424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 48434bede9e425875542976a422222510fa4056a8339Romain Guy } 484421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 484521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 484621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 484721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 48484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 484921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 485021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 485121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 485221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 485321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 48544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 48554bede9e425875542976a422222510fa4056a8339Romain Guy /** 4856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4862441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScroller = new SubPositionScroller(); 4863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4866322171b333a1c796fcc1428a96ea1d854a3881faErik 4867322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4868322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4869441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4870322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4871322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4872322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4873322171b333a1c796fcc1428a96ea1d854a3881faErik * 4874322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4875322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4876322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4877322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4878322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4879322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4880322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4881441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScroller = new SubPositionScroller(); 4882322171b333a1c796fcc1428a96ea1d854a3881faErik } 4883322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4884322171b333a1c796fcc1428a96ea1d854a3881faErik } 4885322171b333a1c796fcc1428a96ea1d854a3881faErik 4886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4887e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4888441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4889e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4890e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4891e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4892e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4893e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4894e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4895e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4896e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4897e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4898e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4899441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScroller = new SubPositionScroller(); 4900e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4901441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScroller.startWithOffset(position, offset, offset); 4902e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4903e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4904e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 49084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4915441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScroller = new SubPositionScroller(); 4916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 49260b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 49270b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 49280b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 49290b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49334032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4934299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 49354032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 49364032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 49374032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 49384032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 49394032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 49404032252c997be9f5d013054dc23ace855007b3a5Adam Powell 494179303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 49424032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4943aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 49444032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 49454032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 49464032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 49474032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 49484032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 49494032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 49500046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 49510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4952299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4955499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4956499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4957499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4958499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4959499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4960499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4961499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4962499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4963499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4964499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4965499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4966499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4967499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4968499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4969499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4970499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4971499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4972499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4973499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4974499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4975499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4976499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4977499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4978499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4979499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4980499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4981499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4982499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4983499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4984499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4985499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4986499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4987499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4988499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4989499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4990499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 49929d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 49950211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 50009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 50019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 50029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 50038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 50049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 50059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 50069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 50079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 50089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 50099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 50109d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 50119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 50129d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 50139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 50146dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 50156dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 50169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 50179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 50189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50232f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 50242f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 50252f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * @param y the amount of pixels to scroll by vertically 5026ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @see #canScrollList(int) 50272f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 5028ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette public void scrollListBy(int y) { 5029ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette trackMotionScroll(-y, -y); 5030ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 5031ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5032ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 5033ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 5034ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * 5035ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @param direction Negative to check scrolling up, positive to check 5036ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * scrolling down. 5037ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @return true if the list can be scrolled in the specified direction, 5038ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * false otherwise. 5039ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @see #scrollListBy(int) 5040ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 5041ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette public boolean canScrollList(int direction) { 5042ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 5043ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette if (childCount == 0) { 5044ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 5045ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 5046ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5047ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 5048ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final Rect listPadding = mListPadding; 5049ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette if (direction > 0) { 5050ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 5051ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int lastPosition = firstPosition + childCount; 5052ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 5053ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } else { 5054ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstTop = getChildAt(0).getTop(); 5055ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 5056ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 50572f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette } 50582f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette 50592f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette /** 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 5065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 5070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5078bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 5079bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 5080bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 5081bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 5082bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 5083bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 5084bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 5085bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 5086bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 5087bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 5089bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 5090bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 5109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 5110bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 5111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 5112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 5113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 5115bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 5116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 5117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 5118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 51200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 51210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 51220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 51230a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51250a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 5126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 5127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5131029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 5132029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 5133029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 5134029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 5137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 5140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 51438c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 51448c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 51458c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 51468c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 5148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 5150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 51551e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // The view will be rebound to new data, clear any 51561e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // system-managed transient state. 51571e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 51581e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 51591e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 5160079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 51658c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 51668c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 51678c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 51688c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 5170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 5172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 5175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 51781e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // The view will be rebound to new data, clear any 51791e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // system-managed transient state. 51801e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 51811e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 51821e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 5183079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 5195539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 5196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5197539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 51989d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 51999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 52009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 52011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 52029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 52039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 5207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 5208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 52094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5215029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 52162a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 52172a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5218079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5219079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5220079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5221079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5222079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5223079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 52242a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5225079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5226079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5227029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5228029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 52324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5233458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5268ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5269ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5270ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 52994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5306637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5307637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5313637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 53294e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 53308d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 53318d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 53324e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 53338d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5334becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5335becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5336becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 53374e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 53388d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 53394e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 54354032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 54364032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 54374032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 54443c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 545514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 545614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 545714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 545814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 545914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 546014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 546114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 546214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 546314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 546414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 546514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 546614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 546714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 546814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 546914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 547014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 547114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 547214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 547314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 547414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 547514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 547614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 547714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 547814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 547914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 548014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 548114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 548214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 548314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 548414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 548514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 548614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 548714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 548814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 548914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 549014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 549114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 549214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 549314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 549414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 549514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 549614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 549714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 549814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 549914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5503ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5504ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 550614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 550714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 550814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5510539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5511539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5512539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 551314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 551414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5521e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55230785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5526da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5527da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5528da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5529da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5530da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5531da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 55320785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5533ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 55340785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 55350785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5536ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5537ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 55380785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 55390785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 55400785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 55410785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 55420785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 55430785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 55440785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5637e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5638079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 564243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 564343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 564443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 564543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 564643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 564743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 564843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 564943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 565043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 565143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 565243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 565343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 565443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 565543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 565643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 565724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 565843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 565943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5663d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 56754df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5676b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5682b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 568624443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5689b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57354e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 57364e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 57374e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 57384e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 57394e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 57404e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 57414e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 57444e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 57454e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5766b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 578283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 57838d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 57848d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5785b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5786b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5787b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5788b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 578983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 579083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 579183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 579283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 579383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 579483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5800cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5804b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5809105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5831b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5832b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5833b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5834b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5835c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 58361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 58371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 5838f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mPublicInputConnection = new InputConnectionWrapper(outAttrs); 58391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5840f69913056b8c6000ff0306573a97971702e8d35aRomain Guy outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 58411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 58421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5843c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5844c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5845b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 58460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5847f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private class InputConnectionWrapper implements InputConnection { 5848f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private final EditorInfo mOutAttrs; 5849f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection mTarget; 5850f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5851f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public InputConnectionWrapper(EditorInfo outAttrs) { 5852f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mOutAttrs = outAttrs; 5853f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5854f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5855f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection getTarget() { 5856f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) { 5857f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5858f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5859f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget; 5860f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5861f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5862f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5863f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean reportFullscreenMode(boolean enabled) { 5864f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since it is 5865f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the "real" one the IME is talking with. 5866f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.reportFullscreenMode(enabled); 5867f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5868f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5869f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5870f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performEditorAction(int editorAction) { 5871f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // The editor is off in its own window; we need to be 5872f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the one that does this. 5873f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (editorAction == EditorInfo.IME_ACTION_DONE) { 5874f69913056b8c6000ff0306573a97971702e8d35aRomain Guy InputMethodManager imm = (InputMethodManager) 5875f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5876f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (imm != null) { 5877f69913056b8c6000ff0306573a97971702e8d35aRomain Guy imm.hideSoftInputFromWindow(getWindowToken(), 0); 5878f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5879f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return true; 5880f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5881f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return false; 5882f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5883f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5884f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5885f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean sendKeyEvent(KeyEvent event) { 5886f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since the filter 5887f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // text view may not be shown in a window so has 5888f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // no ViewAncestor to dispatch events with. 5889f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.sendKeyEvent(event); 5890f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5891f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58920ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5893f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextBeforeCursor(int n, int flags) { 5894f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5895f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextBeforeCursor(n, flags); 5896f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5897f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58980ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5899f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextAfterCursor(int n, int flags) { 5900f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5901f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextAfterCursor(n, flags); 5902f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5903f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59040ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5905f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getSelectedText(int flags) { 5906f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5907f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getSelectedText(flags); 5908f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5909f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59100ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5911f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public int getCursorCapsMode(int reqModes) { 5912f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5913f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getCursorCapsMode(reqModes); 5914f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5915f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59160ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5917f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5918f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().getExtractedText(request, flags); 5919f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5920f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59210ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5922f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5923f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().deleteSurroundingText(beforeLength, afterLength); 5924f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5925f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59260ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5927f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingText(CharSequence text, int newCursorPosition) { 5928f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingText(text, newCursorPosition); 5929f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5930f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59310ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5932f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingRegion(int start, int end) { 5933f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingRegion(start, end); 5934f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5935f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59360ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5937f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean finishComposingText() { 5938f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget == null || mTarget.finishComposingText(); 5939f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5940f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59410ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5942f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitText(CharSequence text, int newCursorPosition) { 5943f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitText(text, newCursorPosition); 5944f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5945f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59460ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5947f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCompletion(CompletionInfo text) { 5948f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCompletion(text); 5949f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5950f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59510ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5952f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCorrection(CorrectionInfo correctionInfo) { 5953f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCorrection(correctionInfo); 5954f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5955f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59560ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5957f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setSelection(int start, int end) { 5958f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setSelection(start, end); 5959f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5960f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59610ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5962f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performContextMenuAction(int id) { 5963f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performContextMenuAction(id); 5964f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5965f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59660ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5967f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean beginBatchEdit() { 5968f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().beginBatchEdit(); 5969f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5970f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59710ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5972f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean endBatchEdit() { 5973f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().endBatchEdit(); 5974f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5975f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59760ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5977f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean clearMetaKeyStates(int states) { 5978f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().clearMetaKeyStates(states); 5979f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5980f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59810ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5982f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performPrivateCommand(String action, Bundle data) { 5983f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performPrivateCommand(action, data); 5984f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5985f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5986f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5987b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5988b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5989b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5990b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5991b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5992b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5993b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5994b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 59950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5996b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 6003f69913056b8c6000ff0306573a97971702e8d35aRomain Guy PopupWindow p = new PopupWindow(getContext()); 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 6007f69913056b8c6000ff0306573a97971702e8d35aRomain Guy p.setContentView(getTextFilterInput()); 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 6013d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 60199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6022f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private EditText getTextFilterInput() { 6023f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTextFilter == null) { 6024f69913056b8c6000ff0306573a97971702e8d35aRomain Guy final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 6025f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter = (EditText) layoutInflater.inflate( 6026f69913056b8c6000ff0306573a97971702e8d35aRomain Guy com.android.internal.R.layout.typing_filter, null); 6027f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // For some reason setting this as the "real" input type changes 6028f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the text view in some way that it doesn't work, and I don't 6029f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // want to figure out why this is. 6030f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 6031f69913056b8c6000ff0306573a97971702e8d35aRomain Guy | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 6032f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 6033f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.addTextChangedListener(this); 6034f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 6035f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTextFilter; 6036f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 6037f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 60409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 60429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 6043f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getTextFilterInput().setText(""); 60449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 60459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 60469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 60479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 60559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 60569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 60609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 60619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 606224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 60639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 606743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 60761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 60841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 60851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 6089f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (isTextFilterEnabled()) { 6090f69913056b8c6000ff0306573a97971702e8d35aRomain Guy createTextFilter(true); 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 60991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 61171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6132aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 6133aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 6134aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 6135aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 6136aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 6137aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 61449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 61499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 61509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 61599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 61835be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 61845be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 61855be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 61865be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 61875be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 61889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 619252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 619352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 619452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 619552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 619652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 619752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 619852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 619952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62087b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 622713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 6231c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 6243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 6244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 6245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 6246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 624913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6250499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6251499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6253499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6254499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 62559b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 62569b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 62573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 62583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 62593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 62603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 62613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 62623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 62633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 62649b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 62652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 62669b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6268335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 6269335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 6270335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 6271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6274a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 62750ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6276a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 62770ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6278a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 6279a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 6280a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6281a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6282a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 6283a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 6284a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6285a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6286a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6287a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6288a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 62892148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 62902148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 62912148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 62928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 62932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 62942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 62952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 62962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 62972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6298499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6299499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 63008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 630116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6302499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6303499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 63042148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 63052148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 63062148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 63072148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 630816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6309fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6310fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 631116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6312499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 631316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6314499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6315499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6316499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6317499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6318499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 63198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6320499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6321fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6322fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6323fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6324fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6325fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6326499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6327499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6328499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6329b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6330b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6331b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6332b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6333b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6334b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6335b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6336b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6337b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6338b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 63479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 63509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 63519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6353b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6354b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6355b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6356b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 63578636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 63588636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSectionsChanged(); 6359b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6360b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6361b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6362b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6363b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6364b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 63658636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 63668636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSectionsChanged(); 6367b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6368b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6369b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6370b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6372f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6373f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6374f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6375f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6376f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6377f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6378f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6379f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6380f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6381f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6382f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6383f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6384f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6385f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6386f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6387f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6388f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6389f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6390f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6391f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6392f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6393f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6394f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6395f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6396f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6397f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6398a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6399a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6400a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6401a798170f2abe198f806b12dd904830bc25257525Adam Powell 64028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6403f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6404f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6405f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6407f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6408f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6411f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 64128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6413f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6414f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6415f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6416f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 64178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6418f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6419f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6420f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6421f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 64228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6423f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6424f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6425f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6426f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6427f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6428f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6429f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6430f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6431f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6432f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6433f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6434f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6435f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6436f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 64378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6439f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6440f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6441f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6442f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6443f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6444f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6445f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6446f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6447f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6448f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6449f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6457bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 64589bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 64599bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 64609bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 64619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 64629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64634df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 64644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 64654df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 64664df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 64674df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 64684df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6469bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 64704df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 64714df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 64720bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 64730bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 64740bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 64750bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 64760bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 64770bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 64780bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 64790bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6480bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 64810bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 64820bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6483079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6484079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6485079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6486079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6487079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6488079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6489079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6490539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6491539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6492539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6493539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6494539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 64969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 64979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 65099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 65159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 65169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 65179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 65199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 65209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 65229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 65249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 65259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 65269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 65289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 65309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 65349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 65359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 65369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 65379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 65389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 65409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 65419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 65439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 65449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 65479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 65499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 65529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 65539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 65549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 65559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 65579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 65609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 65629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 65649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 65669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6567539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6568539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6569539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6570728713258ffef4df053b85e0a3488334cbcba24cChet Haase private LongSparseArray<View> mTransientStateViewsById; 6571539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 65729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 65739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 65749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 65779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 65789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 65799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 65809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 65829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 65839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 65849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6586f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6587f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6588f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6589f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6590f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6591f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6592f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6593f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6594f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6595f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6596f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6597f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6598f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6599f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6600f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6601f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6602f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6603539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6604539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6605539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6606539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6607539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6608539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6609728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6610728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int count = mTransientStateViewsById.size(); 6611728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < count; i++) { 6612728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.valueAt(i).forceLayout(); 6613728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6614728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6615f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 66160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 66179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 66189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 66199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 66239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 66259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 66269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 66279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 66289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 66299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 66309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 66329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 66339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 66349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 66359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 66369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 66379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 66389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6641595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6642595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette clearTransientStateViews(); 66439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 66479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 66489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 66499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 66509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 66519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 66539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 66549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 66559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 66579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6658f69913056b8c6000ff0306573a97971702e8d35aRomain Guy //noinspection MismatchedReadAndWriteOfArray 66599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 66609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 66619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 66629c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 66639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 66649c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 66659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 66669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 66674df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 66689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 66749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 66759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 66769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 66779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 66789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 66809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 66819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 66829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 66839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 66849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 66859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 66869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 66889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6690539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6691728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6692728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(position); 6693728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViewsById.get(id); 6694728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.remove(id); 6695728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6696539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6697728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews != null) { 6698728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int index = mTransientStateViews.indexOfKey(position); 6699728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (index >= 0) { 6700728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViews.valueAt(index); 6701728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.removeAt(index); 6702728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6703728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6704539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6705728713258ffef4df053b85e0a3488334cbcba24cChet Haase return null; 6706539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6707539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6708539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6709595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette * Dumps and fully detaches any currently saved views with transient 6710595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette * state. 6711539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6712539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6713595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final SparseArray<View> viewsByPos = mTransientStateViews; 6714595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (viewsByPos != null) { 6715595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final int N = viewsByPos.size(); 6716595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette for (int i = 0; i < N; i++) { 6717595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette removeDetachedView(viewsByPos.valueAt(i), false); 6718595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 6719595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette viewsByPos.clear(); 6720539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6721595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6722595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final LongSparseArray<View> viewsById = mTransientStateViewsById; 6723595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (viewsById != null) { 6724595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final int N = viewsById.size(); 6725595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette for (int i = 0; i < N; i++) { 6726595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette removeDetachedView(viewsById.valueAt(i), false); 6727595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 6728595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette viewsById.clear(); 6729728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6730539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6731539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 67329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 67339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 67349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 67359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 67369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6737079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 67389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 67399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 67409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6741079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 67429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 67459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6748d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * Puts a view into the list of scrap views. 6749d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * <p> 6750d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6751d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * with transient state will be preserved for later retrieval. 67529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 67539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 6754d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * @param position The view's position within its parent 67559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6756079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 6757d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 67589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 67599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 67609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6762539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6763539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 67641e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Remove but don't scrap header or footer views, or views that 67651e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // should otherwise not be recycled. 6766d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final int viewType = lp.viewType; 6767d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (!shouldRecycleViewType(viewType)) { 6768d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette return; 6769d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6770d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6771d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.dispatchStartTemporaryDetach(); 6772d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6773d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // The the accessibility state of the view may change while temporary 6774d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // detached and we do not allow detached views to fire accessibility 6775d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // events. So we are announcing that the subtree changed giving a chance 6776d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // to clients holding on to a view in this subtree to refresh it. 6777d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav notifyViewAccessibilityStateChangedIfNeeded( 6778d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6779d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 6780d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Don't scrap views that have transient state. 6781539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6782d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (scrapHasTransientState) { 6783d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6784d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the adapter has stable IDs, we can reuse the view for 6785d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // the same data. 6786d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViewsById == null) { 6787d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6788d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6789d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6790d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else if (!mDataChanged) { 6791d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the data hasn't changed, we can reuse the views at 6792d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // their old positions. 6793d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViews == null) { 6794d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews = new SparseArray<View>(); 6795d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6796d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews.put(position, scrap); 6797d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6798d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Otherwise, we'll have to remove the view and start over. 6799539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6800539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6801539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6802539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6803539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6804d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6805d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mViewTypeCount == 1) { 6806d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mCurrentScrap.add(scrap); 6807d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6808d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mScrapViews[viewType].add(scrap); 68099b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 68109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68111e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Clear any system-managed transient state. 68121e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (scrap.isAccessibilityFocused()) { 68131e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette scrap.clearAccessibilityFocus(); 68141e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 68151e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 6816d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.setAccessibilityDelegate(null); 68179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6818d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mRecyclerListener != null) { 6819d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6820d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 68219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6825539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6826539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6827539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6828539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6829539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6830539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6831539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6832539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6833539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6834539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6835539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6836539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6837539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6838539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 68399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 68409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 68419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 68429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 68439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 68449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 68459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 68479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6848a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 68499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 68509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6851079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6852079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6853595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final int whichScrap = lp.viewType; 68549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 68569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6857595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (victim.hasTransientState()) { 6858595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Store views with transient state for later use. 6859595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette victim.dispatchStartTemporaryDetach(); 6860595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6861595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6862595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mTransientStateViewsById == null) { 6863595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6864595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 6865595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette long id = mAdapter.getItemId(mFirstActivePosition + i); 6866595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette mTransientStateViewsById.put(id, victim); 6867595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } else if (!mDataChanged) { 6868595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mTransientStateViews == null) { 6869595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette mTransientStateViews = new SparseArray<View>(); 6870595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 6871595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette mTransientStateViews.put(mFirstActivePosition + i, victim); 6872595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } else if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6873595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // The data has changed, we can't keep this view. 68749b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 68759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6876595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } else if (!shouldRecycleViewType(whichScrap)) { 6877595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Discard non-recyclable views except headers/footers. 6878595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6879595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette removeDetachedView(victim, false); 6880595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 6881595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } else { 6882595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Store everything else on the appropriate scrap heap. 6883595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (multipleScraps) { 6884595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette scrapViews = mScrapViews[whichScrap]; 6885539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 68869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6887595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette victim.dispatchStartTemporaryDetach(); 6888595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette lp.scrappedFromPosition = mFirstActivePosition + i; 6889595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette scrapViews.add(victim); 68909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6891595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette victim.setAccessibilityDelegate(null); 6892595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (hasListener) { 6893595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette mRecyclerListener.onMovedToScrapHeap(victim); 6894595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 68959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 69009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 69029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6903595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette * Makes sure that the size of mScrapViews does not exceed the size of 6904595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette * mActiveViews, which can happen if an adapter does not recycle its 6905595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette * views. Removes cached transient state views that no longer have 6906595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette * transient state. 69079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 69089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 69099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 69109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 69119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 69129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 69139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 69149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 69159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 69169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 69179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 69189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 69199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6921bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6922595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final SparseArray<View> transViewsByPos = mTransientStateViews; 6923595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transViewsByPos != null) { 6924595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette for (int i = 0; i < transViewsByPos.size(); i++) { 6925595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View v = transViewsByPos.valueAt(i); 6926bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6927595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette removeDetachedView(v, false); 6928595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette transViewsByPos.removeAt(i); 6929bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6930bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6931bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6932bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6933595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6934595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final LongSparseArray<View> transViewsById = mTransientStateViewsById; 6935595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transViewsById != null) { 6936595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette for (int i = 0; i < transViewsById.size(); i++) { 6937595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View v = transViewsById.valueAt(i); 6938728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (!v.hasTransientState()) { 6939595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette removeDetachedView(v, false); 6940595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette transViewsById.removeAt(i); 6941728713258ffef4df053b85e0a3488334cbcba24cChet Haase i--; 6942728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6943728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6944728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 69459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 69479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 69489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 69499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 69509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 69519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 69529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 69539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 69549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 69559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 69569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 69579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 69589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 69599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 696252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 696352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 696452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 696552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 696652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 696752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 696852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 696952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 697052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 697152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 697252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 697352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 697452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 697552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 697652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 697752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 697852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 697952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 698052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6981266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 698252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 698352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 698452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 698552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 698652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 698752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 698852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 698952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 699052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 699152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 699252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 699352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 699452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 69959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6996079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6997079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6998079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6999079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 7000079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 7001079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 7002079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 7003079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 7004079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 7005079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 7006079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 7007079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7008079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7009079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 7010079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 7011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 7012079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7013079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7014441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7015441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7016441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Returns the height of a row, which is computed as the maximum height of 7017441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * the items in the row. 7018441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * 7019441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @param row the row index 7020441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @return row height in pixels 7021441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7022441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private int getHeightForRow(int row) { 7023441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstRowPosition = getFirstPositionForRow(row); 7024441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastRowPosition = getFirstPositionForRow(row + 1); 7025441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int maxHeight = 0; 7026441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette for (int i = firstRowPosition; i < lastRowPosition; i++) { 7027441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int height = getHeightForPosition(i); 7028441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (height > maxHeight) { 7029441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette maxHeight = height; 7030441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7031441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7032441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return maxHeight; 7033441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7034441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7035441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7036441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Returns the height of the view for the specified position. 7037441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * 7038441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @param position the item position 7039441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @return view height in pixels 7040441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7041441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int getHeightForPosition(int position) { 7042441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstVisiblePosition = getFirstVisiblePosition(); 7043441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int childCount = getChildCount(); 7044441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int index = position - firstVisiblePosition; 7045441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (position >= 0 && position < childCount) { 7046441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final View view = getChildAt(index); 7047441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return view.getHeight(); 7048441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7049441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final View view = obtainView(position, mIsScrap); 7050441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette view.measure(mWidthMeasureSpec, MeasureSpec.UNSPECIFIED); 7051441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int height = view.getMeasuredHeight(); 7052441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mRecycler.addScrapView(view, position); 7053441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return height; 7054441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7055441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7056441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7057441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7058441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Returns the row for the specified item position. 7059441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * 7060441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @param position the item position 7061441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @return the row index 7062441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7063441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public int getRowForPosition(int position) { 7064441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return position; 7065441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7066441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7067441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7068441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Returns the first item position within the specified row. 7069441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * 7070441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @param row the row 7071441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @return the item position 7072441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7073441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public int getFirstPositionForRow(int row) { 7074441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return row; 7075441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7076441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7077441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7078441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Sets the selected item and positions the selection y pixels from the top edge 7079441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * of the ListView. (If in touch mode, the item will not be selected but it will 7080441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * still be positioned appropriately.) 7081441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * 7082441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @param position Index (starting at 0) of the data item to be selected. 7083441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * @param y The distance from the top edge of the ListView (plus padding) that the 7084441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * item will be positioned. 7085441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7086441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void setSelectionFromTop(int position, int y) { 7087441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mAdapter == null) { 7088441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7089441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7090441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7091441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (!isInTouchMode()) { 7092441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette position = lookForSelectablePosition(position, true); 7093441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (position >= 0) { 7094441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette setNextSelectedPositionInt(position); 7095441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7096441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7097441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mResurrectToPosition = position; 7098441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7099441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7100441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (position >= 0) { 7101441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mLayoutMode = LAYOUT_SPECIFIC; 7102441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mSpecificTop = mListPadding.top + y; 7103441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7104441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mNeedSync) { 7105441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mSyncPosition = position; 7106441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mSyncRowId = mAdapter.getItemId(position); 7107441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7108441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7109441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mPositionScroller != null) { 7110441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScroller.stop(); 7111441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7112441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette requestLayout(); 7113441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7114441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7115441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7116441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette class SubPositionScroller { 7117441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private static final int DEFAULT_SCROLL_DURATION = 200; 7118441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7119441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private SubScroller mSubScroller; 7120441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7121441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7122441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * The target offset in pixels between the top of the list and the top 7123441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * of the target position. 7124441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7125441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private int mOffset; 7126441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7127441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7128441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroll the minimum amount to get the target view entirely on-screen. 7129441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7130441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void scrollToPosition(final int targetPosition, final boolean useOffset, 7131441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset, final int boundPosition, final int duration) { 7132441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette stop(); 7133441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7134441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDataChanged) { 7135441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Wait until we're back in a stable state to try this. 7136441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScrollAfterLayout = new Runnable() { 7137441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7138441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7139441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition( 7140441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetPosition, useOffset, offset, boundPosition, duration); 7141441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7142441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7143441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7144441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7145441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7146441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstPosition = getFirstVisiblePosition(); 7147441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastPosition = firstPosition + getChildCount(); 7148441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int targetRow = getRowForPosition(targetPosition); 7149441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstRow = getRowForPosition(firstPosition); 7150441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastRow = getRowForPosition(lastPosition); 7151441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (useOffset || targetRow <= firstRow) { 7152441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is top-aligned. 7153441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = offset; 7154441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else if (targetRow >= lastRow - 1) { 7155441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is bottom-aligned. 7156441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7157441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = listHeight - getHeightForPosition(targetPosition); 7158441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7159441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is entirely on-screen. 7160441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7161441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7162441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7163441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette float endSubRow = targetRow; 7164441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (boundPosition != INVALID_POSITION) { 7165441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int boundRow = getRowForPosition(boundPosition); 7166441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (boundRow >= firstRow && boundRow < lastRow) { 7167441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endSubRow = computeBoundSubRow(targetRow, boundRow); 7168441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7169441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7170441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7171441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final View firstChild = getChildAt(0); 7172441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChild == null) { 7173441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7174441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7175441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7176441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstChildHeight = firstChild.getHeight(); 7177441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float startOffsetRatio; 7178441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChildHeight == 0) { 7179441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette startOffsetRatio = 1; 7180441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7181441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette startOffsetRatio = -firstChild.getTop() / (float) firstChildHeight; 7182441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7183441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7184441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float startSubRow = firstRow + startOffsetRatio; 7185441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (startSubRow == endSubRow && mOffset == 0) { 7186441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is already in position. 7187441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7188441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7189441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7190441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mSubScroller == null) { 7191441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mSubScroller = new SubScroller(); 7192441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7193441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mSubScroller.startScroll(startSubRow, endSubRow, duration); 7194441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7195441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7196441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7197441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7198441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float computeBoundSubRow(int targetRow, int boundRow) { 7199441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Compute the target and offset as a sub-position. 7200441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int remainingOffset = mOffset; 7201441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int targetHeight = getHeightForRow(targetRow - 1); 7202441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette while (remainingOffset > 0) { 7203441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette remainingOffset -= targetHeight; 7204441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetRow--; 7205441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetHeight = getHeightForRow(targetRow - 1); 7206441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7207441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7208441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float targetOffsetRatio; 7209441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (targetHeight == 0) { 7210441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetOffsetRatio = 1; 7211441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7212441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetOffsetRatio = remainingOffset / (float) targetHeight; 7213441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7214441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7215441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float targetSubRow = targetRow - targetOffsetRatio; 7216441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = 0; 7217441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7218441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (targetSubRow >= boundRow) { 7219441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // End position would push the bound position above the list. 7220441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return boundRow; 7221441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7222441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7223441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Compute the closest possible sub-position that wouldn't push the 7224441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // bound position's view further below the list. 7225441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7226441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int boundHeight = getHeightForRow(boundRow); 7227441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int endRow = boundRow; 7228441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int totalHeight = boundHeight; 7229441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int endHeight; 7230441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette do { 7231441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endRow--; 7232441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endHeight = getHeightForRow(endRow); 7233441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette totalHeight += endHeight; 7234441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } while (totalHeight < listHeight && endRow > 0); 7235441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7236441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float endOffsetRatio; 7237441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (endHeight == 0) { 7238441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endOffsetRatio = 1; 7239441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7240441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endOffsetRatio = (totalHeight - listHeight) / (float) endHeight; 7241441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7242441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7243441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float boundSubRow = endRow + endOffsetRatio; 7244441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return Math.max(boundSubRow, targetSubRow); 7245441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7246441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7247441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void start(int position, int boundPosition) { 7248441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition(position, false, 0, boundPosition, DEFAULT_SCROLL_DURATION); 7249441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7250441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7251441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void startWithOffset(int position, int offset, int duration) { 7252441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition(position, true, offset, INVALID_POSITION, duration); 7253441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7254441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7255441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void start(int position) { 7256441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition(position, false, 0, INVALID_POSITION, DEFAULT_SCROLL_DURATION); 7257441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7258441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7259441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void stop() { 7260441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette removeCallbacks(mAnimationFrame); 7261441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7262441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7263441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void onAnimationFrame() { 7264441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final boolean shouldPost = mSubScroller.computePosition(); 7265441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float subRow = mSubScroller.getPosition(); 7266441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7267441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int row = (int) subRow; 7268441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int position = getFirstPositionForRow(row); 7269441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int rowHeight = getHeightForRow(row); 7270441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset = (int) (rowHeight * (subRow - row)); 7271441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int addOffset = (int) (mOffset * mSubScroller.getInterpolatedValue()); 7272441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette setSelectionFromTop(position, -offset + addOffset); 7273441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7274441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (shouldPost) { 7275441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7276441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7277441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7278441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7279441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private Runnable mAnimationFrame = new Runnable() { 7280441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7281441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7282441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette onAnimationFrame(); 7283441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7284441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7285441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7286441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7287441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7288441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroller capable of returning floating point positions. 7289441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7290441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private static class SubScroller { 7291441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private final Interpolator mInterpolator; 7292441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7293441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mStartPosition; 7294441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mEndPosition; 7295441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mStartTime; 7296441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mDuration; 7297441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7298441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mPosition; 7299441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mInterpolatedValue; 7300441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7301441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public SubScroller() { 7302441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette this(null); 7303441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7304441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7305441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public SubScroller(Interpolator interpolator) { 7306441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (interpolator == null) { 7307441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolator = new AccelerateDecelerateInterpolator(); 7308441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7309441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolator = interpolator; 7310441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7311441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7312441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7313441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void startScroll(float startPosition, float endPosition, int duration) { 7314441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartPosition = startPosition; 7315441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mEndPosition = endPosition; 7316441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mDuration = duration; 7317441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7318441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartTime = AnimationUtils.currentAnimationTimeMillis(); 7319441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = startPosition; 7320441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolatedValue = 0; 7321441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7322441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7323441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public boolean computePosition() { 7324441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final long elapsed = AnimationUtils.currentAnimationTimeMillis() - mStartTime; 7325441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float value; 7326441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDuration <= 0) { 7327441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = 1; 7328441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7329441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = MathUtils.constrain(elapsed / (float) mDuration, 0, 1); 7330441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7331441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7332441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolatedValue = mInterpolator.getInterpolation(value); 7333441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = (mEndPosition - mStartPosition) * mInterpolatedValue + mStartPosition; 7334441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7335441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return elapsed < mDuration; 7336441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7337441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7338441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getPosition() { 7339441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mPosition; 7340441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7341441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7342441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getInterpolatedValue() { 7343441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mInterpolatedValue; 7344441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7345441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 73469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7347