AbsListView.java revision 462c2177f73754458821cfc0441a863c1fa527e4
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 */ 425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller 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 /** 707462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette * Whether the view is in the process of detaching from its window. 708462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette */ 709462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette private boolean mIsDetaching; 710462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 711462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette /** 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7429072110b8293ea3f933822df479c700d8bd9be4cquddusc * @param scrollState The current scroll state. One of 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 760e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 761e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 762e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 763e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 764e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 765e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 766e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 767e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 768e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 769e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 771e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 772e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 773e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 774e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 775e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 78139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 792617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 793617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 794617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 795617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 796617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 797617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 80039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 80139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 802617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 803617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette attrs, com.android.internal.R.styleable.AbsListView, defStyleAttr, defStyleRes); 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8328636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette int fastScrollStyle = a.getResourceId(R.styleable.AbsListView_fastScrollStyle, 0); 8338636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette setFastScrollStyle(fastScrollStyle); 8348636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 83920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 84020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 845d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 846d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 847df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 848d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 849d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 850d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 851d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 852d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8534296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8544296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8554296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8564296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 861d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 86889935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 86989935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 878d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 884539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 885539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 88714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 95882ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 95982ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 96082ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 98214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1021a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1022a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1023a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1024a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1025a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1026a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 103514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 106714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1086bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 109029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10945bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10955bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10975bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 109814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 11035bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 11105bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1111bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 11155bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11165bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1117f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 112114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 113029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 113229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1135bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1136bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1137bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 114329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 114429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 114529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 114629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 114729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 114829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 114929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 115029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 115129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 115229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 115329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 115429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 115529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 115629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 115729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 115829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 115929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 116029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 116429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1190f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1193f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12242bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12252bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12274ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12284ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 123286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 123386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 123586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 123686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 123886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 123986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 124086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 124186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 124486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 124639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 124739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 124839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 124939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 125039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 125139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 125339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 125439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 125539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 125639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 125839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 125939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1260447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 126139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1262447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 126339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 12648636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12658636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(enabled); 126639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 12678636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll = new FastScroller(this, mFastScrollStyle); 12688636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(true); 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 127026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1271b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 127226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 12738636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.updateLayout(); 12758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12768636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 12788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 12798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Specifies the style of the fast scroller decorations. 12808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * 12818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @param styleResId style resource containing fast scroller properties 12828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @see android.R.styleable#FastScroll 12838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 12848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette public void setFastScrollStyle(int styleResId) { 12858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 12868636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScrollStyle = styleResId; 12878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } else { 12888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setStyle(styleResId); 128926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 129386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 129486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 129520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 129686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 129786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 129886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 129986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 130020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 130186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 130286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 130320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 130420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 130520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 130639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 130739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 130839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 130939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 131039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 131139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 131339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 131539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 131639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 131739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 131839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 131939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 132039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 132139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 132339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 13288636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13298636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setAlwaysShow(alwaysShow); 133020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 133439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 133539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 133639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 133739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 133820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 134186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 134220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 134386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 134420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 134520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 134620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 13478636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1348b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1349b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13508636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled() && mFastScroll.isAlwaysShowEnabled(); 1351b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 135220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 135420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 135520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 13568636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.isEnabled()) { 13578636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return Math.max(super.getVerticalScrollbarWidth(), mFastScroll.getWidth()); 135820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 136020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 136220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 136386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 136486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13708636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1371b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1372b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13738636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled(); 1374b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 137720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 137820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 137920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 13808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(position); 138220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 138526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 138626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 138726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 13888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollBarStyle(style); 139026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13940ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1399b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 14130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14508636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 14518636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onScroll(mFirstPosition, getChildCount(), mItemCount); 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14560a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1465d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1466d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1467d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1468d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14699c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14704e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1471d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1472d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14734e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14744e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14754e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14764e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14774e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14788a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14798a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14808a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14818a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14828a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14838a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14848a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14858a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14868a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14878a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1488fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1489fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1490fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 149180943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1492fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1493fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1494fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 149580943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1496fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1497a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1498a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1499a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 150076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette int getSelectionModeForAccessibility() { 150176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette final int choiceMode = getChoiceMode(); 150276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette switch (choiceMode) { 150376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_NONE: 150476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 150576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_SINGLE: 150676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_SINGLE; 150776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE: 150876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE_MODAL: 150976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_MULTIPLE; 151076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette default: 151176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 151276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette 1515a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1516a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 151748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 151848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 151948d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1520a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1521a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1522fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1523a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1524a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1526a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1528a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1529fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1530a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1531a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1532a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1533a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1534a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1535a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 153648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15378a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15388a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15395b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 15405b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 15415b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 15425b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 15435b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 15445b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15455b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 15465b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15475b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15485b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15495b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15505b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15515b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15525b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15535b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15545b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16196bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16318eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable( 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1675a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16762614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 167814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1698a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16992614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 170143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 170243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 170314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 170443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 170543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 170643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 170743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 170814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1709f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1721a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17222614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 172443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 172543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 172643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 172743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 172843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 172914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1763f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1773e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1774e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1775e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1776e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1777e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1778e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1779e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1780e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1781e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1782e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1783e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1784e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1785e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1786e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1787e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 178899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17997becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 18007becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 18017becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 18027becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 18037becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 18047becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 18057becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 18067becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 18077becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 18087becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 181199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 181299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 181399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 181499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 181599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 181699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1835a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1836a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18379a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18389a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18399a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18409a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 184114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18429a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18439a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18449a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18459a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18469a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18479a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18482614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1850335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1851335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1852335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1853335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1868e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1877079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1879e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18962614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18972614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1898a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1899a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1900a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1901a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1902a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1907d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1908d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 19140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 195431986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1955b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1956b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1957b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1958b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1959b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1960b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1979161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1981e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1987079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20310b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 20320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20590b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2111da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2112da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2113da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2114da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2115ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2116da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2117da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2118ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2119da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2120da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2123d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2124d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2125d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2126d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 21314b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette final int childCount = getChildCount(); 2132f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2133f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2134f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2135f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2136f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2137f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21380ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 21394b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette // TODO: Move somewhere sane. This doesn't belong in onLayout(). 21404b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette if (mFastScroll != null) { 21414b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette mFastScroll.onItemCountChanged(childCount, mItemCount); 21422c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2143f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2157d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2158d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2159d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2160d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2161d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2162d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2163d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2164d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2170d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2171d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2172d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21765d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21773e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @param focusedView view that holds accessibility focus 21783e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @return direct child that contains accessibility focus, or null if no 21795d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21805d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21813e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette View getAccessibilityFocusedChild(View focusedView) { 21825d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21835d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 21845d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 21855d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 21865d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21875d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21885d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 21895d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21905d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21915d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21925d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 21935d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21945d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 229421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 229521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 229921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 23005fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 23015fade8c69aef621312232ef0647502d7a63990b9Romain Guy 230221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2304595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Check whether we have a transient state view. Attempt to re-bind the 2305595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // data and discard the view if we fail. 2306595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View transientView = mRecycler.getTransientStateView(position); 2307595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transientView != null) { 2308ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final LayoutParams params = (LayoutParams) transientView.getLayoutParams(); 2309ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2310ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If the view type hasn't changed, attempt to re-bind the data. 2311ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (params.viewType == mAdapter.getItemViewType(position)) { 2312ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final View updatedView = mAdapter.getView(position, transientView, this); 2313ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2314ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If we failed to re-bind the data, scrap the obtained view. 2315ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (updatedView != transientView) { 2316ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette mRecycler.addScrapView(updatedView, position); 2317ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette } 2318595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 2319595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 2320595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Scrap view implies temporary detachment. 2321595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette isScrap[0] = true; 2322595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette return transientView; 2323539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2324539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2325595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View scrapView = mRecycler.getScrapView(position); 2326595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View child = mAdapter.getView(position, scrapView, this); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2329595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, return scrap to the heap. 2330079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 233121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2332a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 23331e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2334a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2336595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23374213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2338595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mCacheColorHint != 0) { 2339595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setDrawingCacheBackgroundColor(mCacheColorHint); 2340595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23414213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2342595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 2343595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2346aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2347aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2348aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2349aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2350aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2351aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2352aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2353aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2354aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2355aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2356aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2357aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2358aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2359aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2360c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2361c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2362c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2363c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2364b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2365b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2366b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2367c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2368c1d7e770e123adfa992d013fa294693d077cbc78alanv 23695fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23705fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2374c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2375c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 237650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 237750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 237850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 237950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 238050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 238150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 238250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 238350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 238450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 238550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 238650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 238750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2388c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2389c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2390c1d7e770e123adfa992d013fa294693d077cbc78alanv 2391c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23925b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2393c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2394c1d7e770e123adfa992d013fa294693d077cbc78alanv 2395c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2396c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2397fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2398fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2399fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2400fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2401c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24029c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2403c1d7e770e123adfa992d013fa294693d077cbc78alanv 24049c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 24059c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2406c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2407c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2408c1d7e770e123adfa992d013fa294693d077cbc78alanv 24099c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 24109c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2411fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2412fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2413fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2414c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2415c1d7e770e123adfa992d013fa294693d077cbc78alanv 2416c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 24179c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 24189c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 24199c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 24209c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24219c3e0e68260fe50456996d75304b73054cbde94aalanv } 24229c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2423fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 24249c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 24259c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 24269c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24279c3e0e68260fe50456996d75304b73054cbde94aalanv } 24289c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2429fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2430fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2431c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2432c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2433fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2434fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2435fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2436c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2437c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2438fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2439c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2440c1d7e770e123adfa992d013fa294693d077cbc78alanv 2441fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2442c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2443c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2444c1d7e770e123adfa992d013fa294693d077cbc78alanv 24455b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24465b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24475b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24485b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24495b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24505b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24515b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24525b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24535b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24545b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24555b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24565b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24575b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24585b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24595b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24605b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24615b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24625b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24635b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24645b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24655b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24665b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 24675b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 24685b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 24695b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 24705b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 24715b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24725b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 24745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 24755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 24765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 24795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2484079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2485079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2486079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2487079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2488079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2491e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2492e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2493e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2500a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2501079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2502079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 254320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 254420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 254520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 254620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 254720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 254820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 254920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 255020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 255120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 255220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 255320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 255420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 255520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 255620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 255720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 255820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 255920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 256020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 256120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 256220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 256320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 256420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 256520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 256620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 256720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 25748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 25758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSizeChanged(w, h, oldw, oldh); 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 260274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2606079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 26348eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable(resID)); 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2650079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2668df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2669df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2670df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2671df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2675079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2680ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2681ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2682ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2689df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2690df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2710079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2711079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2712079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2713079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2714079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2715079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2716079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2717079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2718079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2719079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2766e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2767e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2768e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2769e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2771e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27760e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 27770e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 27780e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 278182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 278282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 278382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 27846a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 27856a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 27866a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 27876a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 27886a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 278982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2796462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = true; 2797462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 27981f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 27991f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 28001f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 280121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 280221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 280321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28050e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 28060e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 28079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 28080e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 281082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2811bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 281282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 281382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 281482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 28171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 28181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 28191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 28221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 28231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 28241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2825d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2826d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2827d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2828d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2829d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2830d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 28314032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2832d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2833d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2834d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2835d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2836d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2837d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2838d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2839d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2840d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2841d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2842d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2843d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2844a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2845d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2846462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 2847462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = false; 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 3474462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !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); 3713462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (!mDataChanged && !mIsDetaching && 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 3988462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !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 4393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The amount of friction applied to flings. The default value 4395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * is {@link ViewConfiguration#getScrollFriction}. 4396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setFriction(float friction) { 4398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.mScroller.setFriction(friction); 4402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets a scale factor for the fling velocity. The initial scale 4406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * factor is 1.0. 4407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scale The scale factor to multiply the velocity by. 4409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setVelocityScale(float scale) { 4411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mVelocityScale = scale; 4412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Override this for better control over position scrolling. 4416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller createPositionScroller() { 4418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new PositionScroller(); 4419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4420e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed. 4424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position) { 4427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position); 4431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Number of milliseconds to use for the scroll 4444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, duration); 4450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. 4458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset) { 4464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, offset); 4468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44694032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed, but it will 4473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * stop early if scrolling further would scroll boundPosition out of 4474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view. 4475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param boundPosition Do not scroll if it would move this adapter 4477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * position out of view. 4478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position, int boundPosition) { 4480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position, boundPosition); 4484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4485aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll by distance pixels over duration milliseconds. 4488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param distance Distance to scroll in pixels. 4489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Duration of the scroll animation in milliseconds. 4490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollBy(int distance, int duration) { 4492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, false); 4493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4494e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollBy(int distance, int duration, boolean linear) { 4496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 44994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No sense starting to scroll if we're not going anywhere 4501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 4502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount; 4504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int topLimit = getPaddingTop(); 4505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomLimit = getHeight() - getPaddingBottom(); 45064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (distance == 0 || mItemCount == 0 || childCount == 0 || 4508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (lastPos == mItemCount && 4510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 4511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.endFling(); 4512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 4513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.startScroll(distance, duration, linear); 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Allows RemoteViews to scroll relatively to a position. 4523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollByOffset(int position) { 4525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = -1; 4526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getFirstVisiblePosition(); 4528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > 0) { 4529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getLastVisiblePosition(); 4530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45314032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index > -1) { 4533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(index - getFirstVisiblePosition()); 4534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child != null) { 4535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Rect visibleRect = new Rect(); 4536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getGlobalVisibleRect(visibleRect)) { 4537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the child is partially visible 4538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childRectArea = child.getWidth() * child.getHeight(); 4539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int visibleRectArea = visibleRect.width() * visibleRect.height(); 4540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette float visibleArea = (visibleRectArea / (float) childRectArea); 4541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float visibleThreshold = 0.75f; 4542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((position < 0) && (visibleArea < visibleThreshold)) { 4543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the top index is not perceivably visible so offset 4544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that top index as well 4545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ++index; 4546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the bottom index is not perceivably visible so offset 4548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that bottom index as well 4549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette --index; 4550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createScrollingCache() { 4558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 4559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(true); 4560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(true); 4561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = true; 4562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void clearScrollingCache() { 4566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isHardwareAccelerated()) { 4567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mClearScrollingCache == null) { 4568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mClearScrollingCache = new Runnable() { 4569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 4570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 4571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mCachingStarted) { 4572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = false; 4573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(false); 4574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 4575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(false); 4576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isAlwaysDrawnWithCacheEnabled()) { 4578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4581aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4582161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4583e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette post(mClearScrollingCache); 4585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4587e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 4590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y the amount of pixels to scroll by vertically 4592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #canScrollList(int) 4593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void scrollListBy(int y) { 4595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette trackMotionScroll(-y, -y); 4596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction Negative to check scrolling up, positive to check 4602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrolling down. 4603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if the list can be scrolled in the specified direction, 4604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * false otherwise. 4605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #scrollListBy(int) 4606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean canScrollList(int direction) { 4608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (direction > 0) { 4616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 4617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPosition = firstPosition + childCount; 4618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 4619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4624e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Track a motion scroll 4627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 4629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * began. Positive numbers mean the user's finger is moving down the screen. 4630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param incrementalDeltaY Change in deltaY from the previous event. 4631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if we're already at the beginning/end of the list and have nothing to do. 4632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 4634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 4637322171b333a1c796fcc1428a96ea1d854a3881faErik } 4638322171b333a1c796fcc1428a96ea1d854a3881faErik 4639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 46414032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4643aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // "effective padding" In this case is the amount of padding that affects 4645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // how much space should not be filled by items. If we don't clip to padding 4646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there is no effective padding. 4647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingTop = 0; 4648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingBottom = 0; 4649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingTop = listPadding.top; 4651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingBottom = listPadding.bottom; 4652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4653aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // FIXME account for grid vertical spacing too? 4655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceAbove = effectivePaddingTop - firstTop; 4656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = getHeight() - effectivePaddingBottom; 4657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceBelow = lastBottom - end; 46581fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = getHeight() - mPaddingBottom - mPaddingTop; 4660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (deltaY < 0) { 4661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.max(-(height - 1), deltaY); 4662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.min(height - 1, deltaY); 4664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4665e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (incrementalDeltaY < 0) { 4667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 4668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 4670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4671e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4673e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update our guesses for where the first and last views are 4675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition == 0) { 4676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess = firstTop - listPadding.top; 4677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess += incrementalDeltaY; 4679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount == mItemCount) { 4681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess += incrementalDeltaY; 4684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4685234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollDown = (firstPosition == 0 && 4687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette firstTop >= listPadding.top && incrementalDeltaY >= 0); 4688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 4689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 4690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (cannotScrollDown || cannotScrollUp) { 4692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return incrementalDeltaY != 0; 4693e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4694e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean down = incrementalDeltaY < 0; 4696e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean inTouchMode = isInTouchMode(); 4698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (inTouchMode) { 4699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette hideSelector(); 4700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4701e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int headerViewsCount = getHeaderViewsCount(); 4703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int footerViewsStart = mItemCount - getFooterViewsCount(); 4704e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int start = 0; 4706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = 0; 4707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int top = -incrementalDeltaY; 4710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette top += listPadding.top; 4712e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getBottom() >= top) { 4716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4729e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int bottom = getHeight() - incrementalDeltaY; 4732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette bottom -= listPadding.bottom; 4734e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 4736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getTop() <= bottom) { 4738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start = i; 4741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4751e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4752e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4753e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4754e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 4756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = true; 4758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 4760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette detachViewsFromParent(start, count); 4761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.removeSkippedScrap(); 4762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // invalidate before moving the children to avoid unnecessary invalidate 4765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // calls to bubble up from the children all the way to the top 4766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!awakenScrollBars()) { 4767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offsetChildrenTopAndBottom(incrementalDeltaY); 4771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPosition += count; 4774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette fillGap(down); 4779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 4782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectedPosition - mFirstPosition; 4783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(mSelectedPosition, getChildAt(childIndex)); 4785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mSelectorPosition != INVALID_POSITION) { 4787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectorPosition - mFirstPosition; 4788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(INVALID_POSITION, getChildAt(childIndex)); 4790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorRect.setEmpty(); 4793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = false; 47964032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 4798e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of header views in the list. Header views are special views 4804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the top of the list that should not be recycled during a layout. 4805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of header views, 0 in the default implementation. 48074bede9e425875542976a422222510fa4056a8339Romain Guy */ 4808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeaderViewsCount() { 4809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 48104bede9e425875542976a422222510fa4056a8339Romain Guy } 481121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 481221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 4813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of footer views in the list. Footer views are special views 4814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the bottom of the list that should not be recycled during a layout. 48154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 4816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of footer views, 0 in the default implementation. 481721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 4818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getFooterViewsCount() { 4819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 482021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 48214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 48224bede9e425875542976a422222510fa4056a8339Romain Guy /** 4823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fills the gap left open by a touch-scroll. During a touch scroll, children that 4824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * remain on screen are shifted and the other ones are discarded. The role of this 4825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * method is to fill the gap thus created by performing a partial layout in the 4826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * empty space. 4827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param down true if the scroll is going down, false if it is going up 4829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void fillGap(boolean down); 4831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void hideSelector() { 4833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition != INVALID_POSITION) { 4834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLayoutMode != LAYOUT_SPECIFIC) { 4835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mSelectedPosition; 4836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 4838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mNextSelectedPosition; 4839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectedPositionInt(INVALID_POSITION); 4841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(INVALID_POSITION); 4842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedTop = 0; 4843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4845322171b333a1c796fcc1428a96ea1d854a3881faErik 4846322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 4848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 4849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of items available in the adapter 4850322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int reconcileSelectedPosition() { 4852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = mSelectedPosition; 4853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = mResurrectToPosition; 4855322171b333a1c796fcc1428a96ea1d854a3881faErik } 4856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.max(0, position); 4857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.min(position, mItemCount - 1); 4858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return position; 4859322171b333a1c796fcc1428a96ea1d854a3881faErik } 4860322171b333a1c796fcc1428a96ea1d854a3881faErik 4861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling 4863e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 4865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row containing y 4866e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract int findMotionRow(int y); 4868e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4869e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling. 4871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 4873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row closest to y 4874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int findClosestMotionRow(int y) { 4876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return INVALID_POSITION; 4879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int motionRow = findMotionRow(y); 4882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Causes all the views to be rebuilt and redrawn. 4887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void invalidateViews() { 4889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 4890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 4891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 4892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4895499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If there is a selection returns false. 4897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Otherwise resurrects the selection and returns true if resurrected. 4898499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelectionIfNeeded() { 4900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && resurrectSelection()) { 4901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 4902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes the item at the supplied position selected. 49092f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 4910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the position of the new selection 49112f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 4912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void setSelectionInt(int position); 4913ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 4914ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 4915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Attempt to bring the selection back if the user is switching from touch 4916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to trackball mode 4917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return Whether selection was set to something. 4918ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 4919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelection() { 4920ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 4921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount <= 0) { 4923ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 4924ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 4925ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 4926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedTop = 0; 4927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedPos; 4928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenTop = mListPadding.top; 4929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenBottom = mBottom - mTop - mListPadding.bottom; 4930ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 4931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int toPosition = mResurrectToPosition; 4932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean down = true; 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 4935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = toPosition; 4936bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 4937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View selected = getChildAt(selectedPos - mFirstPosition); 4938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = selected.getTop(); 4939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedBottom = selected.getBottom(); 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are scrolled, don't get in the fade 4942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedTop < childrenTop) { 4943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenTop + getVerticalFadingEdgeLength(); 4944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (selectedBottom > childrenBottom) { 4945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenBottom - selected.getMeasuredHeight() 4946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette - getVerticalFadingEdgeLength(); 4947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition < firstPosition) { 4950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Default to selecting whatever is first 4951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition; 4952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 4954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == 0) { 4957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remember the position of the first item 4958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 4959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we are scrolled at all 4960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition > 0 || top < childrenTop) { 4961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are scrolled, don't select anything that is 4962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // in the fade region 4963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenTop += getVerticalFadingEdgeLength(); 4964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (top >= childrenTop) { 4967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found a view whose top is fully visisble 4968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 4969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 4970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int itemCount = mItemCount; 4975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette down = false; 4976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + childCount - 1; 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 4979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 4980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 4981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = v.getBottom(); 4982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == childCount - 1) { 4984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 4985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 4986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenBottom -= getVerticalFadingEdgeLength(); 4987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom <= childrenBottom) { 4991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 4992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 4993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(mFlingRunnable); 5001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 5002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 5003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTouchMode = TOUCH_MODE_REST; 5005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearScrollingCache(); 5006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = selectedTop; 5007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = lookForSelectablePosition(selectedPos, down); 5008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 5009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 5010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectionInt(selectedPos); 5012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = INVALID_POSITION; 5015029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return selectedPos >= 0; 5019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void confirmCheckedPositionsById() { 5022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Clear out the positional check states, we'll rebuild it below from IDs. 5023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.clear(); 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean checkedCountChanged = false; 5026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 5027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long id = mCheckedIdStates.keyAt(checkedIndex); 5028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 5029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long lastPosId = mAdapter.getItemId(lastPos); 5031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id != lastPosId) { 5032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Look around to see if the ID is nearby. If not, uncheck it. 5033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 5034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 5035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean found = false; 5036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int searchPos = start; searchPos < end; searchPos++) { 5037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long searchId = mAdapter.getItemId(searchPos); 5038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id == searchId) { 5039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette found = true; 5040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(searchPos, true); 5041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.setValueAt(checkedIndex, searchPos); 5042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!found) { 5047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.delete(id); 5048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedIndex--; 5049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedItemCount--; 5050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedCountChanged = true; 5051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 5052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 5053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastPos, id, false); 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(lastPos, true); 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (checkedCountChanged && mChoiceActionMode != null) { 5062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode.invalidate(); 50639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 5064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 50659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void handleDataChanged() { 5068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = mItemCount; 5069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int lastHandledItemCount = mLastHandledItemCount; 5070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastHandledItemCount = mItemCount; 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 5073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette confirmCheckedPositionsById(); 5074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: In the future we can recycle these views based on stable ID instead. 5077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.clearTransientStateViews(); 5078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 5080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int newPos; 5081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectablePos; 5082029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Find the row we are supposed to sync to 5084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 5085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update this first, since setNextSelectedPositionInt inspects it 5086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 5090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mForceTranscriptScroll) { 5094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mForceTranscriptScroll = false; 5095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listBottom = getHeight() - getPaddingBottom(); 5100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastChild = getChildAt(childCount - 1); 5101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFirstPosition + childCount >= lastHandledItemCount && 5103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= listBottom) { 5104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Something new came in and we didn't scroll; give the user a clue that 5108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there's something new. 5109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette awakenScrollBars(); 5110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mSyncMode) { 5113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_SELECTED_POSITION: 5114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isInTouchMode()) { 5115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We saved our state when not in touch mode. (We know this because 5116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 5117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // restore in touch mode. Just leave mSyncPosition as it is (possibly 5118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // adjusting if the available range changed) and return. 5119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we can find a position in the new data with the same 5125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // id as the old selection. This will change mSyncPosition. 5126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = findSyncPosition(); 5127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= 0) { 5128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found it. Now verify that new selection is still selectable 5129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos == newPos) { 5131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Same row id is selected 5132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = newPos; 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSyncHeight == getHeight()) { 5135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are at the same height as when we saved state, try 5136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to restore the scroll position too. 5137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are not the same height as when the selection was saved, so 5140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // don't try to restore the exact position 5141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SET_SELECTION; 5142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Restore selection 5145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(newPos); 5146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_FIRST_POSITION: 5152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Leave mSyncPosition as it is -- just pin to available range 5153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5158ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 5159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 5161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We couldn't find matching data -- try to use the same position 5162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = getSelectedItemPosition(); 5163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pin position to the available range 5165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= count) { 5166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = count - 1; 5167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos < 0) { 5169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = 0; 5170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we select something selectable -- first look down 5173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Looking down didn't work -- try looking up 5180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, false); 5181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We already know where we want to resurrect the selection 5189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mResurrectToPosition >= 0) { 5190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Nothing is selected. Give up and reset everything. 5197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 5198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedPosition = INVALID_POSITION; 5199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedRowId = INVALID_ROW_ID; 5200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedPosition = INVALID_POSITION; 5201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedRowId = INVALID_ROW_ID; 5202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorPosition = INVALID_POSITION; 5205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkSelectionChanged(); 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void onDisplayHint(int hint) { 5210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onDisplayHint(hint); 5211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (hint) { 5212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case INVISIBLE: 5213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case VISIBLE: 5218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing()) { 5219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopupHidden = hint == INVISIBLE; 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Removes the filter window 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void dismissPopup() { 5230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null) { 5231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.dismiss(); 5232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Shows the filter window 5237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void showPopup() { 5239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we have a window before showing the popup 5240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getWindowVisibility() == View.VISIBLE) { 5241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionPopup(); 5243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we get focus if we are showing the popup 5244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkFocus(); 5245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void positionPopup() { 5249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int screenHeight = getResources().getDisplayMetrics().heightPixels; 5250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int[] xy = new int[2]; 5251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getLocationOnScreen(xy); 5252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: The 20 below should come from the theme 5253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: And the gravity should be defined in the theme as well 5254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!mPopup.isShowing()) { 5256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 5257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette xy[0], bottomGap); 5258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.update(xy[0], bottomGap, -1, -1); 5260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 52634e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 5264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * What is the distance between the source and destination rectangles given the direction of 5265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * focus navigation between them? The direction basically helps figure out more quickly what is 5266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * self evident by the relationship between the rects... 5267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param source the source rectangle 5269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param dest the destination rectangle 5270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction the direction 5271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the distance between the rectangles 52724e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 5273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static int getDistance(Rect source, Rect dest, int direction) { 5274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int sX, sY; // source x, y 5275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int dX, dY; // dest x, y 5276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (direction) { 5277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_RIGHT: 5278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right; 5279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left; 5281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_DOWN: 5284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.bottom; 5286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top; 5288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_LEFT: 5290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left; 5291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.right; 5293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_UP: 5296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top; 5298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.bottom; 5300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_FORWARD: 5302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_BACKWARD: 5303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right + source.width() / 2; 5304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 5309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("direction must be one of " 5310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 5311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 53124e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 5313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaX = dX - sX; 5314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaY = dY - sY; 5315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return deltaY * deltaY + deltaX * deltaX; 5316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean isInFilterMode() { 5320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 53214e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sends a key to the text filter window 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param keyCode The keycode for the event 5327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param event The actual key event 5328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return True if the text filter handled the event, false otherwise. 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!acceptFilter()) { 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean handled = false; 5337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean okToSend = true; 5338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (keyCode) { 5339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_UP: 5340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_DOWN: 5341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_LEFT: 5342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_RIGHT: 5343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_CENTER: 5344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_ENTER: 5345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_BACK: 5348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && mPopup.isShowing()) { 5349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (event.getAction() == KeyEvent.ACTION_DOWN 5350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.getRepeatCount() == 0) { 5351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent.DispatcherState state = getKeyDispatcherState(); 5352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (state != null) { 5353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette state.startTracking(event, this); 5354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (event.getAction() == KeyEvent.ACTION_UP 5357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.isTracking() && !event.isCanceled()) { 5358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setText(""); 5360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_SPACE: 5365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Only send spaces once we are filtered 5366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = mFiltered; 5367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (okToSend) { 5371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent forwardEvent = event; 5374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (forwardEvent.getRepeatCount() > 0) { 5375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int action = event.getAction(); 5379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (action) { 5380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_DOWN: 5381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 5382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_UP: 5385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 5386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_MULTIPLE: 5389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyMultiple(keyCode, count, event); 5390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return handled; 5394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Return an InputConnection for editing of the filter text. 5398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isTextFilterEnabled()) { 5402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPublicInputConnection == null) { 5403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDefInputConnection = new BaseInputConnection(this, false); 5404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPublicInputConnection = new InputConnectionWrapper(outAttrs); 5405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 5407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 5408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mPublicInputConnection; 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private class InputConnectionWrapper implements InputConnection { 5414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final EditorInfo mOutAttrs; 5415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection mTarget; 541614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnectionWrapper(EditorInfo outAttrs) { 5418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOutAttrs = outAttrs; 5419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 542014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection getTarget() { 5422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) { 5423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget; 5426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 542714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean reportFullscreenMode(boolean enabled) { 5430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since it is 5431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the "real" one the IME is talking with. 5432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.reportFullscreenMode(enabled); 5433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performEditorAction(int editorAction) { 5437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The editor is off in its own window; we need to be 5438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the one that does this. 5439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (editorAction == EditorInfo.IME_ACTION_DONE) { 5440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette InputMethodManager imm = (InputMethodManager) 5441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (imm != null) { 5443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette imm.hideSoftInputFromWindow(getWindowToken(), 0); 544414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 544614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 544814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 544914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean sendKeyEvent(KeyEvent event) { 5452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since the filter 5453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // text view may not be shown in a window so has 5454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // no ViewAncestor to dispatch events with. 5455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.sendKeyEvent(event); 545614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 545714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextBeforeCursor(int n, int flags) { 5460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextBeforeCursor(n, flags); 5462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextAfterCursor(int n, int flags) { 5466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextAfterCursor(n, flags); 546814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getSelectedText(int flags) { 5472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getSelectedText(flags); 5474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5475539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public int getCursorCapsMode(int reqModes) { 5478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getCursorCapsMode(reqModes); 5480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().getExtractedText(request, flags); 5485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().deleteSurroundingText(beforeLength, afterLength); 5490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingText(CharSequence text, int newCursorPosition) { 5494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingText(text, newCursorPosition); 5495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingRegion(int start, int end) { 5499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingRegion(start, end); 5500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean finishComposingText() { 5504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget == null || mTarget.finishComposingText(); 5505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitText(CharSequence text, int newCursorPosition) { 5509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitText(text, newCursorPosition); 5510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCompletion(CompletionInfo text) { 5514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCompletion(text); 5515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCorrection(CorrectionInfo correctionInfo) { 5519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCorrection(correctionInfo); 5520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setSelection(int start, int end) { 5524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setSelection(start, end); 5525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performContextMenuAction(int id) { 5529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performContextMenuAction(id); 5530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean beginBatchEdit() { 5534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().beginBatchEdit(); 5535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean endBatchEdit() { 5539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().endBatchEdit(); 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean clearMetaKeyStates(int states) { 5544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().clearMetaKeyStates(states); 5545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performPrivateCommand(String action, Bundle data) { 5549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performPrivateCommand(action, data); 555043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 555143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 555243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For filtering we proxy an input connection to an internal text editor, 5555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * and this allows the proxying to happen. 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean checkInputConnectionProxy(View view) { 5559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view == mTextFilter; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Creates the window for the text filter and populates it with an EditText field; 5564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param animateEntrance true if the window should appear with an animation 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createTextFilter(boolean animateEntrance) { 5568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup == null) { 5569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PopupWindow p = new PopupWindow(getContext()); 5570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setFocusable(false); 5571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setTouchable(false); 5572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setContentView(getTextFilterInput()); 5574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setWidth(LayoutParams.WRAP_CONTENT); 5575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setHeight(LayoutParams.WRAP_CONTENT); 5576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setBackgroundDrawable(null); 5577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup = p; 5578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getViewTreeObserver().addOnGlobalLayoutListener(this); 5579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mGlobalLayoutListenerAddedFilter = true; 5580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (animateEntrance) { 5582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 5583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private EditText getTextFilterInput() { 5589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTextFilter == null) { 5590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter = (EditText) layoutInflater.inflate( 5592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette com.android.internal.R.layout.typing_filter, null); 5593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // For some reason setting this as the "real" input type changes 5594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the text view in some way that it doesn't work, and I don't 5595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // want to figure out why this is. 5596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.addTextChangedListener(this); 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTextFilter; 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clear the text filter. 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void clearTextFilter() { 5608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered) { 5609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getTextFilterInput().setText(""); 5610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns if the ListView currently has a text filter. 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasTextFilter() { 5621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 5622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onGlobalLayout() { 5626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isShown()) { 5627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the popup if we are filtered 5628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 5629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Hide the popup when we are no longer visible 5633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void beforeTextChanged(CharSequence s, int start, int count, int after) { 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Performs 5650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the actual filtering as the text changes, and takes care of hiding and 5651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * showing the popup displaying the currently entered filter text. 5652b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5653b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onTextChanged(CharSequence s, int start, int before, int count) { 5655c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int length = s.length(); 5658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean showing = mPopup.isShowing(); 5659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!showing && length > 0) { 5660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the filter popup if necessary 5661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = true; 5663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (showing && length == 0) { 5664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove the filter popup if the user has cleared all text 5665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter instanceof Filterable) { 5669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Filter f = ((Filterable) mAdapter).getFilter(); 5670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Filter should not be null when we reach this part 5671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (f != null) { 5672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette f.filter(s, this); 5673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalStateException("You cannot call onTextChanged with a non " 5675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "filterable adapter"); 5676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5678c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5679b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void afterTextChanged(Editable s) { 5687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5688f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onFilterComplete(int count) { 5691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && count > 0) { 5692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette resurrectSelection(); 5694f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5696f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5702f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 5705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new LayoutParams(p); 5706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5707f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams generateLayoutParams(AttributeSet attrs) { 5710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(getContext(), attrs); 5711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5712f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 5715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return p instanceof AbsListView.LayoutParams; 5716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57495be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 57505be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 57515be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 57525be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 57535be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 575852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 575952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 576052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 576152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 576252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 576352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 576452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 576552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57747b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views (excluding headers and footers) held by this AbsListView into the supplied 5781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * List. This includes views displayed on the screen as well as views stored in AbsListView's 5782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * internal view recycler. 5783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param views A list into which to put the reclaimed views 5785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void reclaimViews(List<View> views) { 5787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childCount = getChildCount(); 5788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette RecyclerListener listener = mRecycler.mRecyclerListener; 5789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Reclaim views on screen 5791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 5793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 5794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't reclaim header or footer views, or views that should be ignored 5795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 5796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.add(child); 5797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.setAccessibilityDelegate(null); 5798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (listener != null) { 5799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pretend they went through the scrap heap 5800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette listener.onMovedToScrapHeap(child); 5801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.reclaimScrapViews(views); 5805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeAllViewsInLayout(); 5806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void finishGlows() { 5809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mEdgeGlowTop != null) { 5810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowTop.finish(); 5811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowBottom.finish(); 5812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * through the specified intent. 5818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsAdapter(Intent intent) { 5821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 5822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 5823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 5825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcOld = new Intent.FilterComparison( 5826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.getRemoteViewsServiceIntent()); 5827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (fcNew.equals(fcOld)) { 5828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 5832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, create a new RemoteViewsAdapter for binding 5833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter.isDataReady()) { 5835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 5836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 5841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param handler The OnClickHandler to use when inflating RemoteViews. 5843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 5845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 5847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 5848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 5849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 5851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 5856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * connected yet. 5857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void deferNotifyDataSetChanged() { 5860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = true; 5861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter connects to the RemoteViewsService. 5865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onRemoteAdapterConnected() { 5868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != mAdapter) { 5869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 5870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDeferNotifyDataSetChanged) { 5871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.notifyDataSetChanged(); 5872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 5873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mRemoteAdapter != null) { 5876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.superNotifyDataSetChanged(); 5877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 5878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter disconnects from the RemoteViewsService. 5884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onRemoteAdapterDisconnected() { 5887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the remote adapter disconnects, we keep it around 5888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // since the currently displayed items are still cached. 5889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Further, we want the service to eventually reconnect 5890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // when necessary, as triggered by this view requesting 5891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // items from the Adapter. 5892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * being displayed by the AbsListView. 5897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setVisibleRangeHint(int start, int end) { 5899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 5900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setVisibleRangeHint(start, end); 5901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the recycler listener to be notified whenever a View is set aside in 5906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the recycler for later reuse. This listener can be used to free resources 5907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to the View. 5908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param listener The recycler listener to be notified of views set aside 5910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * in the recycler. 5911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 5913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 5914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRecyclerListener(RecyclerListener listener) { 5916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.mRecyclerListener = listener; 5917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onChanged() { 5922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onChanged(); 5923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 5924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 5925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onInvalidated() { 5930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onInvalidated(); 5931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 5932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 5933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * selects and deselects list items. 5942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public interface MultiChoiceModeListener extends ActionMode.Callback { 5944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called when an item is checked or unchecked during selection mode. 5946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param mode The {@link ActionMode} providing the selection mode 5948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Adapter position of the item that was checked or unchecked 5949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param id Adapter ID of the item that was checked or unchecked 5950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param checked <code>true</code> if the item is now checked, <code>false</code> 5951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * if the item is now unchecked. 5952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 5954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked); 5955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private MultiChoiceModeListener mWrapped; 5959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setWrapped(MultiChoiceModeListener wrapped) { 5961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped = wrapped; 5962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasWrappedCallback() { 5965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped != null; 5966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mWrapped.onCreateActionMode(mode, menu)) { 5971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Initialize checked graphic state? 5972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(false); 5973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 5974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onPrepareActionMode(mode, menu); 5981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onActionItemClicked(mode, item); 5986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onDestroyActionMode(ActionMode mode) { 5990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onDestroyActionMode(mode); 5991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode = null; 5992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ending selection mode means deselecting everything. 5994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearChoices(); 5995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 5997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 5998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 5999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(true); 6001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked) { 6006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If there are no items selected we no longer need the selection mode. 6009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getCheckedItemCount() == 0) { 6010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mode.finish(); 6011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * AbsListView extends LayoutParams to provide a place to hold the view type. 6017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static class LayoutParams extends ViewGroup.LayoutParams { 6019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * View type for this view, as returned by 6021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link android.widget.Adapter#getItemViewType(int) } 6022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list", mapping = { 6024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 6025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 6026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }) 6027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewType; 6028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When this boolean is set, the view has been added to the AbsListView 6031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at least once. It is used to know whether headers/footers have already 6032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * been added to the list view and whether they should be treated as 6033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * recycled views or not. 6034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean recycledHeaderFooter; 6037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When an AbsListView is measured with an AT_MOST measure spec, it needs 6040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to obtain children views to measure itself. When doing so, the children 6041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * are not attached to the window, but put in the recycler which assumes 6042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * they've been attached before. Setting this flag will force the reused 6043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view to be attached to the window rather than just attached to the 6044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * parent. 6045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean forceAdd; 6048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position the view was removed from when pulled out of the 6051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrap heap. 6052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrappedFromPosition; 6055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The ID the view represents 6058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long itemId = -1; 6060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(Context c, AttributeSet attrs) { 6062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(c, attrs); 6063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h) { 6066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h, int viewType) { 6070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette this.viewType = viewType; 6072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(ViewGroup.LayoutParams source) { 6075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(source); 6076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A RecyclerListener is used to receive a notification whenever a View is placed 6081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * inside the RecycleBin's scrap heap. This listener is used to free resources 6082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to Views placed in the RecycleBin. 6083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static interface RecyclerListener { 6088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Indicates that the specified View was moved into the recycler's scrap heap. 6090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The view is not displayed on screen any more and any expensive resource 6091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated with the view should be discarded. 6092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param view 6094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void onMovedToScrapHeap(View view); 6096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 6100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 6101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * start of a layout. By construction, they are displaying current information. At the end of 6102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 6103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * could potentially be used by the adapter to avoid allocating views unnecessarily. 6104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class RecycleBin { 6109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private RecyclerListener mRecyclerListener; 6110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position of the first view stored in mActiveViews. 6113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mFirstActivePosition; 6115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views that were on screen at the start of layout. This array is populated at the start of 6118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 6119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views in mActiveViews represent a contiguous range of Views, with position of the first 6120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view store in mFirstActivePosition. 6121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private View[] mActiveViews = new View[0]; 6123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Unsorted views that can be used by the adapter as a convert view. 6126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View>[] mScrapViews; 6128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mViewTypeCount; 6130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mCurrentScrap; 6132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mSkippedScrap; 6134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private SparseArray<View> mTransientStateViews; 6136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private LongSparseArray<View> mTransientStateViewsById; 6137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setViewTypeCount(int viewTypeCount) { 6139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTypeCount < 1) { 6140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 6141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection unchecked 6143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 6144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; i++) { 6145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews[i] = new ArrayList<View>(); 6146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mViewTypeCount = viewTypeCount; 6148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap = scrapViews[0]; 6149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews = scrapViews; 6150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void markChildrenDirty() { 6153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).forceLayout(); 6158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).forceLayout(); 6166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViews.size(); 6171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.valueAt(i).forceLayout(); 6173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById != null) { 6176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViewsById.size(); 6177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.valueAt(i).forceLayout(); 6179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean shouldRecycleViewType(int viewType) { 6184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return viewType >= 0; 6185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clears the scrap heap. 6189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clear() { 6191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 61933e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 61983e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearTransientStateViews(); 6203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fill ActiveViews with all of the children of the AbsListView. 6207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param childCount The minimum number of views mActiveViews should hold 6209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param firstActivePosition The position of the first view that will be stored in 6210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews 6211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void fillActiveViews(int childCount, int firstActivePosition) { 6213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mActiveViews.length < childCount) { 6214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mActiveViews = new View[childCount]; 6215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstActivePosition = firstActivePosition; 6217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection MismatchedReadAndWriteOfArray 6219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't put header or footer views into the scrap heap 6224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 6226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // However, we will NOT place them into scrap views. 6227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = child; 6228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Get the view corresponding to the specified position. The view will be removed from 6234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews if it is found. 6235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The position to look up in mActiveViews 6237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The view if it is found, null otherwise 6238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getActiveView(int position) { 6240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = position - mFirstActivePosition; 6241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >=0 && index < activeViews.length) { 6243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View match = activeViews[index]; 6244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[index] = null; 6245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return match; 6246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getTransientStateView(int position) { 6251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(position); 6253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViewsById.get(id); 6254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.remove(id); 6255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = mTransientStateViews.indexOfKey(position); 6259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0) { 6260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViews.valueAt(index); 6261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.removeAt(index); 6262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Dumps and fully detaches any currently saved views with transient 6270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * state. 6271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clearTransientStateViews() { 6273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> viewsByPos = mTransientStateViews; 6274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsByPos != null) { 6275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsByPos.size(); 6276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsByPos.valueAt(i), false); 6278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsByPos.clear(); 6280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> viewsById = mTransientStateViewsById; 6283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsById != null) { 6284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsById.size(); 6285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsById.valueAt(i), false); 6287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsById.clear(); 6289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A view from the ScrapViews collection. These are unordered. 6294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getScrapView(int position) { 6296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mCurrentScrap, position); 6298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 62993e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int whichScrap = mAdapter.getItemViewType(position); 6300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mScrapViews[whichScrap], position); 6302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts a view into the list of scrap views. 6309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * <p> 6310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * with transient state will be preserved for later retrieval. 6312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scrap The view to add 6314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The view's position within its parent 6315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void addScrapView(View scrap, int position) { 6317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 6318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp == null) { 6319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = position; 6323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove but don't scrap header or footer views, or views that 6325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // should otherwise not be recycled. 6326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewType = lp.viewType; 6327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!shouldRecycleViewType(viewType)) { 6328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.dispatchStartTemporaryDetach(); 6332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The the accessibility state of the view may change while temporary 6334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // detached and we do not allow detached views to fire accessibility 6335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // events. So we are announcing that the subtree changed giving a chance 6336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to clients holding on to a view in this subtree to refresh it. 6337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette notifyViewAccessibilityStateChangedIfNeeded( 6338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scrap views that have transient state. 6341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean scrapHasTransientState = scrap.hasTransientState(); 6342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrapHasTransientState) { 6343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the adapter has stable IDs, we can reuse the view for 6345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the same data. 6346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the data hasn't changed, we can reuse the views at 6352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // their old positions. 6353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(position, scrap); 6357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, we'll have to remove the view and start over. 6359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap = new ArrayList<View>(); 6361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.add(scrap); 6363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap.add(scrap); 6367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews[viewType].add(scrap); 6369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRecyclerListener != null) { 6372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Finish the removal of any views that skipped the scrap heap. 6379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void removeSkippedScrap() { 6381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mSkippedScrap.size(); 6385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(mSkippedScrap.get(i), false); 6387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.clear(); 6389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views remaining in mActiveViews to mScrapViews. 6393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void scrapActiveViews() { 6395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean hasListener = mRecyclerListener != null; 6397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean multipleScraps = mViewTypeCount > 1; 6398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View> scrapViews = mCurrentScrap; 6400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = count - 1; i >= 0; i--) { 6402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp 6405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette = (AbsListView.LayoutParams) victim.getLayoutParams(); 6406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int whichScrap = lp.viewType; 6407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = null; 6409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim.hasTransientState()) { 6411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store views with transient state for later use. 6412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(mFirstActivePosition + i); 6419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(id, victim); 6420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(mFirstActivePosition + i, victim); 6425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The data has changed, we can't keep this view. 6427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!shouldRecycleViewType(whichScrap)) { 6430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Discard non-recyclable views except headers/footers. 6431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store everything else on the appropriate scrap heap. 6436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (multipleScraps) { 6437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews = mScrapViews[whichScrap]; 6438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = mFirstActivePosition + i; 6442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews.add(victim); 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (hasListener) { 6445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(victim); 6446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette pruneScrapViews(); 6452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 6454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes sure that the size of mScrapViews does not exceed the size of 6456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews, which can happen if an adapter does not recycle its 6457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * views. Removes cached transient state views that no longer have 6458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * transient state. 6459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void pruneScrapViews() { 6461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int maxViews = mActiveViews.length; 6462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int size = scrapPile.size(); 6467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extras = size - maxViews; 6468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette size--; 6469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < extras; j++) { 6470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(scrapPile.remove(size--), false); 6471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 64723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6473499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> transViewsByPos = mTransientStateViews; 6475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsByPos != null) { 6476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsByPos.size(); i++) { 6477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsByPos.valueAt(i); 6478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsByPos.removeAt(i); 6481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6485a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> transViewsById = mTransientStateViewsById; 6487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsById != null) { 6488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsById.size(); i++) { 6489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsById.valueAt(i); 6490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsById.removeAt(i); 6493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 64982148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 6499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts all views in the scrap heap into the supplied list. 6501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void reclaimScrapViews(List<View> views) { 6503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(mCurrentScrap); 6505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(scrapPile); 6511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65122148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 6513499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6514499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Updates the cache color hint of all known views. 6517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param color The new cache color hint. 6519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setCacheColorHint(int color) { 6521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).setDrawingCacheBackgroundColor(color); 6526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).setDrawingCacheBackgroundColor(color); 6534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Just in case this is called during a layout pass 6538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; ++i) { 6541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.setDrawingCacheBackgroundColor(color); 6544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6547499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 65483e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 65493e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int size = scrapViews.size(); 65503e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (size > 0) { 65513e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette // See if we still have a view for this position or ID. 65523e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int i = 0; i < size; i++) { 65533e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View view = scrapViews.get(i); 65543e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final AbsListView.LayoutParams params = 65553e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette (AbsListView.LayoutParams) view.getLayoutParams(); 65563e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65573e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (mAdapterHasStableIds) { 65583e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final long id = mAdapter.getItemId(position); 65593e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (id == params.itemId) { 65603e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrapViews.remove(i); 65613e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65623e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else if (params.scrappedFromPosition == position) { 65633e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(i); 65643e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 65653e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 65663e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 6567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65683e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(size - 1); 65693e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 65703e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 65713e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else { 65723e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return null; 6573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 65743e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65753e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65763e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearScrap(final ArrayList<View> scrap) { 65773e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int scrapCount = scrap.size(); 65783e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int j = 0; j < scrapCount; j++) { 65793e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 65803e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65813e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65823e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65833e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearAccessibilityFromScrap(View view) { 65843e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (view.isAccessibilityFocused()) { 65853e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.clearAccessibilityFocus(); 65863e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65873e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.setAccessibilityDelegate(null); 65883e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 65893e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 65903e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void removeDetachedView(View child, boolean animate) { 65913e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette child.setAccessibilityDelegate(null); 65923e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette AbsListView.this.removeDetachedView(child, animate); 6593b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6594b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6595b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6596b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 6597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of the view for the specified position. 65989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 6600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return view height in pixels 66019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeightForPosition(int position) { 6603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstVisiblePosition = getFirstVisiblePosition(); 6604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = position - firstVisiblePosition; 6606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0 && index < childCount) { 6607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is on-screen, use existing view. 6608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = getChildAt(index); 6609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view.getHeight(); 6610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is off-screen, obtain & recycle view. 6612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = obtainView(position, mIsScrap); 6613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette view.measure(mWidthMeasureSpec, MeasureSpec.UNSPECIFIED); 6614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = view.getMeasuredHeight(); 6615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(view, position); 6616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return height; 6617b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6618b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6619b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 66209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the selected item and positions the selection y pixels from the top edge 6622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the ListView. (If in touch mode, the item will not be selected but it will 6623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * still be positioned appropriately.) 6624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Index (starting at 0) of the data item to be selected. 6626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y The distance from the top edge of the ListView (plus padding) that the 6627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * item will be positioned. 6628f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setSelectionFromTop(int position, int y) { 6630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter == null) { 6631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6632a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6633a798170f2abe198f806b12dd904830bc25257525Adam Powell 6634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 6635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = lookForSelectablePosition(position, true); 6636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(position); 6638f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = position; 6641f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6642f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 6645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = mListPadding.top + y; 6646f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 6648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = position; 6649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncRowId = mAdapter.getItemId(position); 6650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6651f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 6653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 6654f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6656f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract positon scroller used to handle smooth scrolling. 66619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static abstract class AbsPositionScroller { 6663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position); 6664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position, int boundPosition); 6665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset); 6666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset, int duration); 6667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void stop(); 6668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6669079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Default position scroller that simulates a fling. 6672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class PositionScroller extends AbsPositionScroller implements Runnable { 6674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int SCROLL_DURATION = 200; 6675539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_POS = 1; 6677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_POS = 2; 6678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_BOUND = 3; 6679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_BOUND = 4; 6680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_OFFSET = 5; 66819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mMode; 6683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mTargetPos; 6684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mBoundPos; 6685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mLastSeenPos; 6686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mScrollDuration; 6687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final int mExtraScroll; 66889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mOffsetFromTop; 66909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PositionScroller() { 6692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 66939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position) { 6697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 66989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 67179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - clampedPosition + 1; 6722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = clampedPosition - lastPos + 1; 6725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 6726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 6728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 6735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 67399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6742539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position, final int boundPosition) { 6745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6746539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosition == INVALID_POSITION) { 6748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 67509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position, boundPosition); 6757f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6760f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6766539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromLast = lastPos - boundPosition; 6775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromLast < 1) { 6776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6778728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 67790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = firstPos - clampedPosition + 1; 6781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromLast - 1; 6782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_BOUND; 6785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromFirst = boundPosition - firstPos; 6791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromFirst < 1) { 6792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = clampedPosition - lastPos + 1; 6797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromFirst - 1; 6798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_BOUND; 6801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 68049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 6807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 68089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6809595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 68149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = boundPosition; 6817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 68189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 68209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 6824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, offset, SCROLL_DURATION); 68259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(final int position, int offset, final int duration) { 6829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6830539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int postOffset = offset; 6834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, postOffset, duration); 6837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6840539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6841595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6846728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6847539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offset += getPaddingTop(); 6849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 6851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOffsetFromTop = offset; 6852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 6854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_OFFSET; 6855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTargetPos < firstPos) { 6861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - mTargetPos; 6862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTargetPos > lastPos) { 6863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = mTargetPos - lastPos; 68649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 6866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 6867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(targetTop - offset, duration, true); 6868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 68699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 6872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 6873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = screenTravelCount < 1 ? 6874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette duration : (int) (duration / screenTravelCount); 6875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 6876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 68789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scroll such that targetPos is in the visible padded region without scrolling 6882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * boundPos out of view. Assumes targetPos is onscreen. 68839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void scrollToVisible(int targetPos, int boundPos, int duration) { 6885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedTop = mListPadding.top; 6889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedBottom = getHeight() - mListPadding.bottom; 6890539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetPos < firstPos || targetPos > lastPos) { 6892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 6893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette " not visible [" + firstPos + ", " + lastPos + "]"); 6894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos < firstPos || boundPos > lastPos) { 6896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // boundPos doesn't matter, it's already offscreen. 6897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boundPos = INVALID_POSITION; 6898d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6899d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View targetChild = getChildAt(targetPos - firstPos); 6901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = targetChild.getTop(); 6902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetBottom = targetChild.getBottom(); 6903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrollBy = 0; 6904d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 6905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetBottom > paddedBottom) { 6906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetBottom - paddedBottom; 6907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetTop < paddedTop) { 6909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetTop - paddedTop; 6910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy == 0) { 6913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69151e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 6916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos >= 0) { 6917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View boundChild = getChildAt(boundPos - firstPos); 6918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTop = boundChild.getTop(); 6919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundBottom = boundChild.getBottom(); 6920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absScroll = Math.abs(scrollBy); 69219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 6923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the bottom of the screen. 6924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.max(0, boundBottom - paddedBottom); 6925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 6926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the top of the screen. 6927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.min(0, boundTop - paddedTop); 6928d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 69299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, duration); 69329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void stop() { 6936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(this); 6937539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6938539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 6941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listHeight = getHeight(); 6942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 69439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mMode) { 6945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_POS: { 6946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 1; 6947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 69489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 6950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 6954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 6955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6958595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 6960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 6961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 6962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 6963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = lastPos < mItemCount - 1 ? 6964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 69659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 6967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, mScrollDuration, true); 69689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 6970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos < mTargetPos) { 6971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 69729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 69749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_BOUND: { 6977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewIndex = 1; 6978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 69799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mBoundPos || childCount <= nextViewIndex 6981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette || firstPos + childCount >= mItemCount) { 6982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 69839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextPos = firstPos + nextViewIndex; 6985bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos == mLastSeenPos) { 6987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 6988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View nextView = getChildAt(nextViewIndex); 6993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewHeight = nextView.getHeight(); 6994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewTop = nextView.getTop(); 6995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 6996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos < mBoundPos) { 6997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 6998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration, true); 6999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = nextPos; 7001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextViewTop > extraScroll) { 7005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 7006bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7007bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7009bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7010595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_POS: { 7012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mLastSeenPos) { 7013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7016728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 70179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View firstView = getChildAt(0); 7019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstView == null) { 7020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 70219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstViewTop = firstView.getTop(); 7023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = firstPos > 0 ? 7024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 702552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 7026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 7027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos > mTargetPos) { 7031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 703252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 703452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_BOUND: { 7037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 2; 7038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 704052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 7042079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 7043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7047079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7048441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 7054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos > mBoundPos) { 7056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 7057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = listHeight - extraScroll; 7060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewBottom = lastViewTop + lastViewHeight; 7061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom > lastViewBottom) { 7062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 7063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7066441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7067441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_OFFSET: { 7069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLastSeenPos == firstPos) { 7070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7074441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7076441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int position = mTargetPos; 7079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7080441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount = 0; 7082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - position + 1; 7084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = position - lastPos; 7086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7087441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7090441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 7092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (-getHeight() * modifier); 7094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (getHeight() * modifier); 7099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(position - firstPos).getTop(); 7105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = targetTop - mOffsetFromTop; 7106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * 7107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ((float) Math.abs(distance) / getHeight())); 7108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7111441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7112441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 7114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7115441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7116441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7117441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7118441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract position scroller that handles sub-position scrolling but has no 7121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * understanding of layout. 7122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract class AbsSubPositionScroller extends AbsPositionScroller { 7124441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private static final int DEFAULT_SCROLL_DURATION = 200; 7125441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final SubScroller mSubScroller = new SubScroller(); 7127441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7128441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7129441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * The target offset in pixels between the top of the list and the top 7130441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * of the target position. 7131441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7132441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private int mOffset; 7133441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7134441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7135441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroll the minimum amount to get the target view entirely on-screen. 7136441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7137441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void scrollToPosition(final int targetPosition, final boolean useOffset, 7138441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset, final int boundPosition, final int duration) { 7139441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette stop(); 7140441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7141441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDataChanged) { 7142441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Wait until we're back in a stable state to try this. 7143441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPositionScrollAfterLayout = new Runnable() { 7144441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7145441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7146441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition( 7147441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetPosition, useOffset, offset, boundPosition, duration); 7148441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7149441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7150441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7151441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7152441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7153441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstPosition = getFirstVisiblePosition(); 7154441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastPosition = firstPosition + getChildCount(); 7155441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int targetRow = getRowForPosition(targetPosition); 7156441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstRow = getRowForPosition(firstPosition); 7157441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int lastRow = getRowForPosition(lastPosition); 7158441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (useOffset || targetRow <= firstRow) { 7159441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is top-aligned. 7160441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = offset; 7161441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else if (targetRow >= lastRow - 1) { 7162441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Offset so the target row is bottom-aligned. 7163441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7164441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = listHeight - getHeightForPosition(targetPosition); 7165441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7166441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is entirely on-screen. 7167441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7168441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7169441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7170441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette float endSubRow = targetRow; 7171441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (boundPosition != INVALID_POSITION) { 7172441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int boundRow = getRowForPosition(boundPosition); 7173bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette if (boundRow >= firstRow && boundRow < lastRow && boundRow != targetRow) { 7174441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endSubRow = computeBoundSubRow(targetRow, boundRow); 7175441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7176441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7177441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7178441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final View firstChild = getChildAt(0); 7179441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChild == null) { 7180441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7181441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7182441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7183441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int firstChildHeight = firstChild.getHeight(); 7184441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float startOffsetRatio; 7185441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (firstChildHeight == 0) { 7186441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette startOffsetRatio = 1; 7187441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7188441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette startOffsetRatio = -firstChild.getTop() / (float) firstChildHeight; 7189441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7190441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7191441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float startSubRow = firstRow + startOffsetRatio; 7192441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (startSubRow == endSubRow && mOffset == 0) { 7193441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Don't scroll, target is already in position. 7194441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return; 7195441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7196441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7197441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mSubScroller.startScroll(startSubRow, endSubRow, duration); 7198441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7199441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7200441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7201441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7202441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float computeBoundSubRow(int targetRow, int boundRow) { 7203bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette // If the final offset is greater than 0, we're aiming above the 7204bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette // suggested target row. Compute the actual target row and offset 7205bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette // within that row by subtracting the height of each preceeding row. 7206441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int remainingOffset = mOffset; 7207bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette int targetHeight = getHeightForRow(targetRow); 720800b982920222dd364e690d8856bad4caf5734ba5Alan Viverette while (targetRow > 1 && remainingOffset > targetHeight) { 7209441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetRow--; 7210bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette remainingOffset -= targetHeight; 7211bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette targetHeight = getHeightForRow(targetRow); 7212441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7213441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7214bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette // Compute the offset within the actual target row. 7215441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float targetOffsetRatio; 721600b982920222dd364e690d8856bad4caf5734ba5Alan Viverette if (remainingOffset > 0) { 721700b982920222dd364e690d8856bad4caf5734ba5Alan Viverette // We can't reach that offset given the row count. 721800b982920222dd364e690d8856bad4caf5734ba5Alan Viverette targetOffsetRatio = 0; 721900b982920222dd364e690d8856bad4caf5734ba5Alan Viverette } else if (targetHeight == 0) { 7220441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetOffsetRatio = 1; 7221441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7222441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette targetOffsetRatio = remainingOffset / (float) targetHeight; 7223441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7224441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7225bb9364279fd1f8ebd444b765ebea22af0199f34dAlan Viverette // The final offset has been accounted for, reset it. 7226441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float targetSubRow = targetRow - targetOffsetRatio; 7227441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mOffset = 0; 7228441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7229441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (targetSubRow >= boundRow) { 7230441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // End position would push the bound position above the list. 7231441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return boundRow; 7232441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7233441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7234441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // Compute the closest possible sub-position that wouldn't push the 7235441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette // bound position's view further below the list. 7236441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int listHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 7237441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int boundHeight = getHeightForRow(boundRow); 7238441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int endRow = boundRow; 7239441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int totalHeight = boundHeight; 7240441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette int endHeight; 7241441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette do { 7242441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endRow--; 7243441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endHeight = getHeightForRow(endRow); 7244441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette totalHeight += endHeight; 7245441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } while (totalHeight < listHeight && endRow > 0); 7246441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7247441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float endOffsetRatio; 7248441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (endHeight == 0) { 7249441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endOffsetRatio = 1; 7250441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7251441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette endOffsetRatio = (totalHeight - listHeight) / (float) endHeight; 7252441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7253441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7254441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float boundSubRow = endRow + endOffsetRatio; 7255441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return Math.max(boundSubRow, targetSubRow); 7256441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7257441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(int position) { 7260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToPosition(position, false, 0, INVALID_POSITION, DEFAULT_SCROLL_DURATION); 7261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7264441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void start(int position, int boundPosition) { 7265441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette scrollToPosition(position, false, 0, boundPosition, DEFAULT_SCROLL_DURATION); 7266441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7267441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 7270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToPosition(position, true, offset, INVALID_POSITION, DEFAULT_SCROLL_DURATION); 7271441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7272441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset, int duration) { 7275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToPosition(position, true, offset, INVALID_POSITION, duration); 7276441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7277441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7279441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void stop() { 7280441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette removeCallbacks(mAnimationFrame); 7281441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7282441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of a row, which is computed as the maximum height of 7285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the items in the row. 7286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param row the row index 7288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return row height in pixels 7289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getHeightForRow(int row); 7291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the row for the specified item position. 7294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 7296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the row index 7297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getRowForPosition(int position); 7299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 7301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the first item position within the specified row. 7302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 7303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param row the row 7304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the position of the first item in the row 7305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 7306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract int getFirstPositionForRow(int row); 7307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7308441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private void onAnimationFrame() { 7309441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final boolean shouldPost = mSubScroller.computePosition(); 7310441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float subRow = mSubScroller.getPosition(); 7311441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7312441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int row = (int) subRow; 7313441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int position = getFirstPositionForRow(row); 7314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= getCount()) { 7315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Invalid position, abort scrolling. 7316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7319441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int rowHeight = getHeightForRow(row); 7320441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int offset = (int) (rowHeight * (subRow - row)); 7321441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final int addOffset = (int) (mOffset * mSubScroller.getInterpolatedValue()); 7322441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette setSelectionFromTop(position, -offset + addOffset); 7323441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7324441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (shouldPost) { 7325441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette postOnAnimation(mAnimationFrame); 7326441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7327441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7328441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7329441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private Runnable mAnimationFrame = new Runnable() { 7330441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette @Override 7331441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void run() { 7332441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette onAnimationFrame(); 7333441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7334441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette }; 7335441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7336441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7337441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette /** 7338441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette * Scroller capable of returning floating point positions. 7339441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette */ 7340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static class SubScroller { 7341441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private final Interpolator mInterpolator; 7342441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7343441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mStartPosition; 7344441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mEndPosition; 7345441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mStartTime; 7346441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private long mDuration; 7347441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7348441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mPosition; 7349441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette private float mInterpolatedValue; 7350441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7351441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public SubScroller() { 7352441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette this(null); 7353441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7354441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7355441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public SubScroller(Interpolator interpolator) { 7356441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (interpolator == null) { 7357441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolator = new AccelerateDecelerateInterpolator(); 7358441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7359441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolator = interpolator; 7360441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7361441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7362441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7363441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public void startScroll(float startPosition, float endPosition, int duration) { 7364441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartPosition = startPosition; 7365441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mEndPosition = endPosition; 7366441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mDuration = duration; 7367441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7368441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mStartTime = AnimationUtils.currentAnimationTimeMillis(); 7369441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = startPosition; 7370441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolatedValue = 0; 7371441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7372441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7373441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public boolean computePosition() { 7374441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final long elapsed = AnimationUtils.currentAnimationTimeMillis() - mStartTime; 7375441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette final float value; 7376441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette if (mDuration <= 0) { 7377441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = 1; 7378441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } else { 7379441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette value = MathUtils.constrain(elapsed / (float) mDuration, 0, 1); 7380441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7381441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7382441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mInterpolatedValue = mInterpolator.getInterpolation(value); 7383441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette mPosition = (mEndPosition - mStartPosition) * mInterpolatedValue + mStartPosition; 7384441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7385441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return elapsed < mDuration; 7386441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7387441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7388441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getPosition() { 7389441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mPosition; 7390441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7391441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7392441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette public float getInterpolatedValue() { 7393441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette return mInterpolatedValue; 7394441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7395441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 73969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7397