AbsListView.java revision f85e673980bea51941488eeeeba2d30832384ae2
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 1980756e38882720860db52f1fcc21fa1505a02abfTor Norbyeimport android.annotation.ColorInt; 207b9c912f536925ac6ec43935d6e97506851b33d6Tor Norbyeimport android.annotation.DrawableRes; 2194a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamyimport android.annotation.NonNull; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 23499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 29c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 345fade8c69aef621312232ef0647502d7a63990b9Romain Guyimport android.os.Trace; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 36f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.text.InputType; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 4052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 42539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 43f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 44079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 45f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 46637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 52f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 53f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 6094a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamyimport android.view.ViewHierarchyEncoder; 6113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 63a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 64c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 65a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 6623f4432437b2ab742971055b7eb79b346894f24bAlan Viveretteimport android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction; 6776769ae02e713f50816ee67ff618b748d95050a8Alan Viveretteimport android.view.accessibility.AccessibilityNodeInfo.CollectionInfo; 680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 690b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 71f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 72f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 73b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 74f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 75f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 76b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 78a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 80335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 81335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 86d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 87d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 88d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 99f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 103499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 104499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 107539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 108539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 115de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 124de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 23439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 23539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 23639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 23739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 261f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 262f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 263f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 264f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 26514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 26614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 26714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 268f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 270f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 271f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 288499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 289499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 290499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 291499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 294539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 295539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 296539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2982148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2992148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 3002148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 3012148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 312079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 313079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 314079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 315079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 316079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3720211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller mPositionScroller; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 45539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 45639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 45739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 5004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5010b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 51314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 51414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 51514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 51614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 51714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5411cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5421cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 550d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private CheckForTap mPendingCheckForTap; 5510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 563d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 564d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 565d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 566d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 567d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 585f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette * The cached drawable state for the selector. Accounts for child enabled 586f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette * state, but otherwise identical to the view's own drawable state. 587f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette */ 588f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette private int[] mSelectorState; 589f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette 590f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette /** 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5988636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private FastScroller mFastScroll; 5998636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 6008636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 6018636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Temporary holder for fast scroller style until a FastScroller object 6028636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * is created. 6038636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 6048636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private int mFastScrollStyle; 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 606d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 608d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 6121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 6136dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6146dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 615161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 6164296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 6174296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 61821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 6194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 62021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 62296d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollOffset = new int[2]; 62396d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollConsumed = new int[2]; 62496d62aff0f97557bc15de98e145d9345288d060cAdam Powell 625b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette private final float[] mTmpPoint = new float[2]; 626b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette 627744beffb6ae76d682c559970bb634722c835a32eAdam Powell // Used for offsetting MotionEvents that we feed to the VelocityTracker. 628744beffb6ae76d682c559970bb634722c835a32eAdam Powell // In the future it would be nice to be able to give this to the VelocityTracker 629744beffb6ae76d682c559970bb634722c835a32eAdam Powell // directly, or alternatively put a VT into absolute-positioning mode that only 630744beffb6ae76d682c559970bb634722c835a32eAdam Powell // reads the raw screen-coordinate x/y values. 631744beffb6ae76d682c559970bb634722c835a32eAdam Powell private int mNestedYOffset = 0; 632744beffb6ae76d682c559970bb634722c835a32eAdam Powell 63324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 63424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 63524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 66589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 67089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 678637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 679637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 680637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 681637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 683637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 692da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 693da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 694da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 695da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 696da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 697c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 698c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 699c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 700c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 701c1d7e770e123adfa992d013fa294693d077cbc78alanv 7024e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 7034e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 7044e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 705da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 706ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 707ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 708ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 709ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 710ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 7110b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 7120b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 7130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 7140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 7150b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 716e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 717e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 718e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 719e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 720e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 721e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 722e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 723e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 724462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette * Whether the view is in the process of detaching from its window. 725462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette */ 726462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette private boolean mIsDetaching; 727462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 728462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette /** 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 75943943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee * @param scrollState The current scroll state. One of 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 777e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 778e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 779e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 780e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 781e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 782e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 783e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 784e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 785e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 786e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 787e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 788e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 789e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 790e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 791e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 792e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 79739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 79839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 801287c0361877057e50190cc0d7224e5bb2a7c4955Adam Powell initializeScrollbarsInternal(a); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 809617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 810617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 811617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 812617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 813617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 814617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 81739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 81839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 819617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 8207eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette attrs, R.styleable.AbsListView, defStyleAttr, defStyleRes); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8227eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette final Drawable selector = a.getDrawable(R.styleable.AbsListView_listSelector); 8237eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette if (selector != null) { 8247eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setSelector(selector); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8277eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette mDrawSelectorOnTop = a.getBoolean(R.styleable.AbsListView_drawSelectorOnTop, false); 8287eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette 8297eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setStackFromBottom(a.getBoolean( 8307eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_stackFromBottom, false)); 8317eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setScrollingCacheEnabled(a.getBoolean( 8327eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_scrollingCache, true)); 8337eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setTextFilterEnabled(a.getBoolean( 8347eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_textFilterEnabled, false)); 8357eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setTranscriptMode(a.getInt( 8367eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_transcriptMode, TRANSCRIPT_MODE_DISABLED)); 8377eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setCacheColorHint(a.getColor( 8387eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_cacheColorHint, 0)); 8397eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setSmoothScrollbarEnabled(a.getBoolean( 8407eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_smoothScrollbar, true)); 8417eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setChoiceMode(a.getInt( 8427eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 8437eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette 8447eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setFastScrollEnabled(a.getBoolean( 8457eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_fastScrollEnabled, false)); 8467eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setFastScrollStyle(a.getResourceId( 8477eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_fastScrollStyle, 0)); 8487eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette setFastScrollAlwaysVisible(a.getBoolean( 8497eceda3020d8a3bec09684f31ed90c8e30b5226dAlan Viverette R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 854d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 856df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 857d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 858d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 859d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 861d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8624296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8634296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8644296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8654296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 869d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 870d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 87789935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 87889935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 887d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 893539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 894539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 89614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 96782ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 96882ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 96982ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 99114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1030a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1031a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1032a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1033a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1034a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1035a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 104414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 107614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1095bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 11035bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11045bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 11065bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 110714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 11125bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 11195bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1120bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 112229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 11245bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11255bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1126f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 113014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 113629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 113929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 114029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 114129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1144bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1145bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1146bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 115229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 115329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 115429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 115529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 115629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 115729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 115829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 115929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 116029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 116129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 116229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 116329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 116429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 116529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 116629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 116729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 116829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 116929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 117029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 117129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 117229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 117329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1199f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1202f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12332bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12342bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12364ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12374ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 124186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 124286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 124386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 124486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 124586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 124686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 124786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 124886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 124986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 125086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 125386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 125539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 125639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 125739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 125839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 125939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 126039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 126139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 126239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 126339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 126439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 126539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 126639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 126739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 126839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1269447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 127039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1271447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 127239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 12738636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(enabled); 127539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 12768636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll = new FastScroller(this, mFastScrollStyle); 12778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(true); 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 127926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1280b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 128126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 12828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.updateLayout(); 12848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12868636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 12878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 12888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Specifies the style of the fast scroller decorations. 12898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * 12908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @param styleResId style resource containing fast scroller properties 12918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @see android.R.styleable#FastScroll 12928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 12938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette public void setFastScrollStyle(int styleResId) { 12948636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 12958636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScrollStyle = styleResId; 12968636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } else { 12978636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setStyle(styleResId); 129826bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 130286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 130386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 130420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 130586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 130686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 130786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 130886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 130920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 131086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 131186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 131220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 131320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 131420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 131539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 131639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 131739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 131839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 131939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 132139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 132239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 132339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 132439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 132539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 132639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 132739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 132839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 132939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 133039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 133239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 13378636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13388636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setAlwaysShow(alwaysShow); 133920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 134120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 134339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 134439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 134539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 134639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 134720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 135086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 135120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 135286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 135320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 135420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 135520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 13568636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1357b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1358b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13598636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled() && mFastScroll.isAlwaysShowEnabled(); 1360b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 136120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 136320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 136420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 13658636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.isEnabled()) { 13668636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return Math.max(super.getVerticalScrollbarWidth(), mFastScroll.getWidth()); 136720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 136920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 137020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 137120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 137286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 137386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1380b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1381b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled(); 1383b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 138620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 138720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 138820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 13898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(position); 139120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 139220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 139320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 139426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 139526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 139626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 13978636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13988636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollBarStyle(style); 139926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 140026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 140126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14030ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 14040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1408b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 14220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14598636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 14608636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onScroll(mFirstPosition, getChildCount(), mItemCount); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1468a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette /** @hide */ 1469a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1470a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette public void sendAccessibilityEventInternal(int eventType) { 14714e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14724e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14734e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14744e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1475d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1476d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1477d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1478d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14799c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14804e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1481d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1482d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14834e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14844e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 1485a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette super.sendAccessibilityEventInternal(eventType); 14864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14874e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14888a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 1489a7bb6fbeab933326d58aa806d8194b7b13239d34Dianne Hackborn public CharSequence getAccessibilityClassName() { 1490a7bb6fbeab933326d58aa806d8194b7b13239d34Dianne Hackborn return AbsListView.class.getName(); 14918a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14928a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 1493a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette /** @hide */ 14948a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 1495a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) { 1496a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette super.onInitializeAccessibilityNodeInfoInternal(info); 1497fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1498947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (canScrollUp()) { 149923f4432437b2ab742971055b7eb79b346894f24bAlan Viverette info.addAction(AccessibilityAction.ACTION_SCROLL_BACKWARD); 1500ac6ffce1711b84682521e6c2e55865c60929fd88Maxim Bogatov info.addAction(AccessibilityAction.ACTION_SCROLL_UP); 150180943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1502fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1503947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (canScrollDown()) { 150423f4432437b2ab742971055b7eb79b346894f24bAlan Viverette info.addAction(AccessibilityAction.ACTION_SCROLL_FORWARD); 1505ac6ffce1711b84682521e6c2e55865c60929fd88Maxim Bogatov info.addAction(AccessibilityAction.ACTION_SCROLL_DOWN); 150680943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1507fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1508a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1509a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1510a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 151176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette int getSelectionModeForAccessibility() { 151276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette final int choiceMode = getChoiceMode(); 151376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette switch (choiceMode) { 151476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_NONE: 151576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 151676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_SINGLE: 151776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_SINGLE; 151876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE: 151976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE_MODAL: 152076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_MULTIPLE; 152176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette default: 152276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 152376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 152476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 152576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette 1526a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette /** @hide */ 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1528a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette public boolean performAccessibilityActionInternal(int action, Bundle arguments) { 1529a54956a0bc611b1e9b3914edc7a604b59688f6b7Alan Viverette if (super.performAccessibilityActionInternal(action, arguments)) { 153048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 153148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1532a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1533ac6ffce1711b84682521e6c2e55865c60929fd88Maxim Bogatov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: 1534ac6ffce1711b84682521e6c2e55865c60929fd88Maxim Bogatov case R.id.accessibilityActionScrollDown: { 1535fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1536a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1537a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1538a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1539a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1540a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1541ac6ffce1711b84682521e6c2e55865c60929fd88Maxim Bogatov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: 1542ac6ffce1711b84682521e6c2e55865c60929fd88Maxim Bogatov case R.id.accessibilityActionScrollUp: { 1543fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1544a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1545a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1546a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1547a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1548a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1549a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 155048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15518a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15528a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15535b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 15545b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 15555b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 15565b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 15575b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 15585b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15595b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 15605b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15615b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15625b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15635b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15645b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15655b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15665b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15675b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15685b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16336bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16458eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable( 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1689a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16902614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1691f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 169214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1712a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 17132614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1714f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 171543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 171643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 171714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 171843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 171943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 172043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 172143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 172214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1735a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17362614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1737f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 173843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 173943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 174043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 174143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 174243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 174314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1755f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1756f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1777f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1787e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1788e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1789e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1790e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1791e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1792e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1793e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1794e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1795e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1796e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1797e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1798e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1799e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1800e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1801e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 180299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18137becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 18147becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 18157becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 18167becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 18177becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 18187becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 18197becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 18207becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 18217becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 18227becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 182599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 182699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 182799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 182899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 182999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 183099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1850a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18519a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18529a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18539a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18549a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 185514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18569a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18579a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18589a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18599a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18609a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18619a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18622614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1864335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1865335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1866335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1867335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1882e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1891079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1893e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 19102614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 19112614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1912a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1913a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1914a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1915a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1916a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1921d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1922d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 19280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19540a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 196831986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1969b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1970b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1971b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1972b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1973b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1974b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1993161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1995e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 2001079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20450b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 20460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20670b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20680b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20730b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20740b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20918fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 21098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 21118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2125da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2126da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2127da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2128da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2129ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2130da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2131da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2132ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2133da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2134da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2137d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2138d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2139d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2140d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 2144d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2146d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21474b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette final int childCount = getChildCount(); 2148f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2149f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2150f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2151f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2152f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2153f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21540ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 2159732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette 2160732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette // TODO: Move somewhere sane. This doesn't belong in onLayout(). 2161732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette if (mFastScroll != null) { 2162732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette mFastScroll.onItemCountChanged(getChildCount(), mItemCount); 2163732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette } 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2173d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2174d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2175d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2176d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2177d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2178d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2179d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2180d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2186d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2187d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2188d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21925d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21933e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @param focusedView view that holds accessibility focus 21943e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @return direct child that contains accessibility focus, or null if no 21955d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21965d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21973e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette View getAccessibilityFocusedChild(View focusedView) { 21985d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21995d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 22005d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 22015d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 22025d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 22035d565faab21324862fa24490f116424e1b668b1dAlan Viverette 22045d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 22055d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 22065d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 22075d565faab21324862fa24490f116424e1b668b1dAlan Viverette 22085d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 22095d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 22105d565faab21324862fa24490f116424e1b668b1dAlan Viverette 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 2213947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette mScrollUp.setVisibility(canScrollUp() ? View.VISIBLE : View.INVISIBLE); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 2217947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette mScrollDown.setVisibility(canScrollDown() ? View.VISIBLE : View.INVISIBLE); 2218947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 2219947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2221947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette private boolean canScrollUp() { 2222947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette boolean canScrollUp; 2223947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // 0th element is not visible 2224947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollUp = mFirstPosition > 0; 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2226947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // ... Or top of 0th element is not visible 2227947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (!canScrollUp) { 2228947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (getChildCount() > 0) { 2229947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette View child = getChildAt(0); 2230947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollUp = child.getTop() < mListPadding.top; 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2232947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2234947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette return canScrollUp; 2235947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 2236947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2237947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette private boolean canScrollDown() { 2238947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette boolean canScrollDown; 2239947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette int count = getChildCount(); 2240947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2241947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // Last item is not visible 2242947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollDown = (mFirstPosition + count) < mItemCount; 2243947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2244947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // ... Or bottom of the last element is not visible 2245947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (!canScrollDown && count > 0) { 2246947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette View child = getChildAt(count - 1); 2247947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2249947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2250947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette return canScrollDown; 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 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#getPaddingTop() 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 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#getPaddingBottom() 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 231821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 231921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 23204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 232321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 23245fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 23255fade8c69aef621312232ef0647502d7a63990b9Romain Guy 232621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2328595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Check whether we have a transient state view. Attempt to re-bind the 2329595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // data and discard the view if we fail. 2330595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View transientView = mRecycler.getTransientStateView(position); 2331595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transientView != null) { 2332ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final LayoutParams params = (LayoutParams) transientView.getLayoutParams(); 2333ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2334ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If the view type hasn't changed, attempt to re-bind the data. 2335ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (params.viewType == mAdapter.getItemViewType(position)) { 2336ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final View updatedView = mAdapter.getView(position, transientView, this); 2337ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2338ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If we failed to re-bind the data, scrap the obtained view. 2339ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (updatedView != transientView) { 2340e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(updatedView, position); 2341ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette mRecycler.addScrapView(updatedView, position); 2342ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette } 2343595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 2344595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 2345595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette isScrap[0] = true; 23466c413ce6382d083c0f34fb9c8f5220e1cf467650Alan Viverette 23476c413ce6382d083c0f34fb9c8f5220e1cf467650Alan Viverette // Finish the temporary detach started in addScrapView(). 23486c413ce6382d083c0f34fb9c8f5220e1cf467650Alan Viverette transientView.dispatchFinishTemporaryDetach(); 2349595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette return transientView; 2350539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2351539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2352595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View scrapView = mRecycler.getScrapView(position); 2353595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View child = mAdapter.getView(position, scrapView, this); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2356595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, return scrap to the heap. 2357079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 235821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2359a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 23601e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 23616c413ce6382d083c0f34fb9c8f5220e1cf467650Alan Viverette // Finish the temporary detach started in addScrapView(). 23625987e553c2b6eb2a341bf13ec50daff0b541e4e8Deepanshu Gupta child.dispatchFinishTemporaryDetach(); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2364595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23654213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2366595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mCacheColorHint != 0) { 2367595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setDrawingCacheBackgroundColor(mCacheColorHint); 2368595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23694213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2370595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 2371595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2374e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(child, position); 2375aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2376c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2377c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2378c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2379c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2380b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2381b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2382b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2383c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2384c1d7e770e123adfa992d013fa294693d077cbc78alanv 23855fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23865fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2390e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette private void setItemViewLayoutParams(View child, int position) { 2391e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2392e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette LayoutParams lp; 2393e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (vlp == null) { 2394e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateDefaultLayoutParams(); 2395e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else if (!checkLayoutParams(vlp)) { 2396e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateLayoutParams(vlp); 2397e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else { 2398e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) vlp; 2399e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2400e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2401e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (mAdapterHasStableIds) { 2402e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.itemId = mAdapter.getItemId(position); 2403e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2404e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.viewType = mAdapter.getItemViewType(position); 2405dbed9e5fef8f3d320fcb9856212c551e47f20c3fAdam Powell if (lp != vlp) { 2406dbed9e5fef8f3d320fcb9856212c551e47f20c3fAdam Powell child.setLayoutParams(lp); 2407dbed9e5fef8f3d320fcb9856212c551e47f20c3fAdam Powell } 2408e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2409e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2410c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2411c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 241250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 241350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 241450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 241550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 241650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 241750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 241850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 241950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 242050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 242150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 242250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 242350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2424c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2425c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2426c1d7e770e123adfa992d013fa294693d077cbc78alanv 2427c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24285b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2429c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2430c1d7e770e123adfa992d013fa294693d077cbc78alanv 2431c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2432c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2433fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2434fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2435fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2436fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2437c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24389c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2439c1d7e770e123adfa992d013fa294693d077cbc78alanv 24409c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 24419c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2442c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2443c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2444c1d7e770e123adfa992d013fa294693d077cbc78alanv 24459c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 24469c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2447fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2448fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2449fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2450c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2451c1d7e770e123adfa992d013fa294693d077cbc78alanv 2452c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 24539c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 24549c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 24559c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 24569c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24579c3e0e68260fe50456996d75304b73054cbde94aalanv } 24589c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2459fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 24609c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 24619c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 24629c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24639c3e0e68260fe50456996d75304b73054cbde94aalanv } 24649c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2465fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2466fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2467c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2468c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2469fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2470fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2471fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2472c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2473c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2474fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2475c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2476c1d7e770e123adfa992d013fa294693d077cbc78alanv 2477fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2478c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2479c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2480c1d7e770e123adfa992d013fa294693d077cbc78alanv 24815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24885b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24895b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24905b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24915b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24925b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24935b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24945b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24955b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24965b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24975b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24985b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24995b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 25005b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25015b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 25025b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 25035b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 250423f4432437b2ab742971055b7eb79b346894f24bAlan Viverette info.addAction(AccessibilityAction.ACTION_CLEAR_SELECTION); 25055b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 250623f4432437b2ab742971055b7eb79b346894f24bAlan Viverette info.addAction(AccessibilityAction.ACTION_SELECT); 25075b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25085b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 25095b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 251023f4432437b2ab742971055b7eb79b346894f24bAlan Viverette info.addAction(AccessibilityAction.ACTION_CLICK); 25115b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 25125b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25135b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 25145b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 251523f4432437b2ab742971055b7eb79b346894f24bAlan Viverette info.addAction(AccessibilityAction.ACTION_LONG_CLICK); 25165b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 25175b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25185b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25195b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2520de399397947c5379c61a1003c017b96accbbf545Alan Viverette /** 2521d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette * Positions the selector in a way that mimics touch. 2522d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette */ 2523d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette void positionSelectorLikeTouch(int position, View sel, float x, float y) { 2524b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel, true, x, y); 2525d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette } 2526d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette 2527d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette /** 25284d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette * Positions the selector in a way that mimics keyboard focus. 2529de399397947c5379c61a1003c017b96accbbf545Alan Viverette */ 2530de399397947c5379c61a1003c017b96accbbf545Alan Viverette void positionSelectorLikeFocus(int position, View sel) { 2531b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (mSelector != null && mSelectorPosition != position && position != INVALID_POSITION) { 2532de399397947c5379c61a1003c017b96accbbf545Alan Viverette final Rect bounds = mSelectorRect; 2533de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float x = bounds.exactCenterX(); 2534de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float y = bounds.exactCenterY(); 2535b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel, true, x, y); 2536b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } else { 2537b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel); 2538de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2539de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2540de399397947c5379c61a1003c017b96accbbf545Alan Viverette 2541079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2542b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel, false, -1, -1); 2543b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 2544b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette 2545b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette private void positionSelector(int position, View sel, boolean manageHotspot, float x, float y) { 2546b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final boolean positionChanged = position != mSelectorPosition; 2547079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2548079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2549079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2550079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2553e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2554e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2555e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 25564d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 25574d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // Adjust for selection padding. 25584d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.left -= mSelectionLeftPadding; 25594d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.top -= mSelectionTopPadding; 25604d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.right += mSelectionRightPadding; 25614d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.bottom += mSelectionBottomPadding; 25624d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 2563a19ab347be2ca9c7cac6a1943a658063b3571d92Alan Viverette // Update the child enabled state prior to updating the selector. 2564a19ab347be2ca9c7cac6a1943a658063b3571d92Alan Viverette final boolean isChildViewEnabled = sel.isEnabled(); 2565a19ab347be2ca9c7cac6a1943a658063b3571d92Alan Viverette if (mIsChildViewEnabled != isChildViewEnabled) { 2566a19ab347be2ca9c7cac6a1943a658063b3571d92Alan Viverette mIsChildViewEnabled = isChildViewEnabled; 2567a19ab347be2ca9c7cac6a1943a658063b3571d92Alan Viverette } 2568a19ab347be2ca9c7cac6a1943a658063b3571d92Alan Viverette 2569a19ab347be2ca9c7cac6a1943a658063b3571d92Alan Viverette // Update the selector drawable's state and position. 25704d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final Drawable selector = mSelector; 25714d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (selector != null) { 2572b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (positionChanged) { 2573b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Wipe out the current selector state so that we can start 2574b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // over in the new position with a fresh state. 2575b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setVisible(false, false); 2576b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setState(StateSet.NOTHING); 2577b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 25784d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setBounds(selectorRect); 2579b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (positionChanged) { 2580b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (getVisibility() == VISIBLE) { 2581b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setVisible(true, false); 2582b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 25832167b11de6f239d7f747d2e11897b6759232b8fdChet Haase updateSelectorState(); 2584b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 2585b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (manageHotspot) { 2586b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setHotspot(x, y); 2587b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 25884d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette } 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 262320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 262420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 262520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 262620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 262720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 262820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 262920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 263020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 263120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 263220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 263320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 263420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 263520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 263620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 263720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 263820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 263920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 264020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 264120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 264220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 264320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 264420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 264520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 264620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 264720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2653d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 26548636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 26558636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSizeChanged(w, h, oldw, oldh); 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 2682f7dee54b62b02413fc6a0b8dc5666a7cd9758460Alan Viverette return (isFocused() && !isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2686079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27137b9c912f536925ac6ec43935d6e97506851b33d6Tor Norbye public void setSelector(@DrawableRes int resID) { 27148eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable(resID)); 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2730079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2748df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2749df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2750df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2751df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2755079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2759ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2760ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2761ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2762ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2769df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2770df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2790079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2791079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2792079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2793f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette mSelector.setState(getDrawableStateForSelector()); 2794079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2795079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2796079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2797079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2798079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2799079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2803079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2806f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette private int[] getDrawableStateForSelector() { 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 2810f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette return super.getDrawableState(); 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2818f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette // If we don't have any extra space, it will return one of the static 2819f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette // state arrays, and clearing the enabled state on those arrays is a 2820f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette // bad thing! If we specify we need extra space, it will create+copy 2821f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette // into a new array that is safely mutable. 2822f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette final int[] state = onCreateDrawableState(1); 2823f723c83fe56a41ca316b0c2c0e70c42af6cd5b1dAlan Viverette 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2847e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2848e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2849e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2850e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2851e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2852e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28570e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 28580e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 28590e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 286282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 286382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 286482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 28656a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 28666a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 28676a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 28686a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 28696a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 287082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2877462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = true; 2878462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 28791f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 28801f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 28811f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 288221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 288321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 288421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28860e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 28870e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 28889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 28890e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 289182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2892bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 289382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 289482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 289582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28971cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 28981cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 28991cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 29001cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 29011cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 29021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 29031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 29041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 29051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2906d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2907d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2908d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2909d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2910d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2911d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 29124032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2913d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2914d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2915d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2916d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2917d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2918d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2919d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2920d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2921d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2922d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2923d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2924d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2925a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2926d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2927462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 2928462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = false; 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2939670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2940670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2941670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2942670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2943670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 29444032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 29454032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 29464032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 29490fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2953670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 296297566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29863a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 29873a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 29883a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 29898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 29908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(getVerticalScrollbarPosition()); 29913a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29923a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29933a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30091487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 30101487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 30111487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 30121487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 30131487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 30141487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30151487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 30161487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 30171487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30181487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 30191487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 30201487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30211487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 30221487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 30231487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30241487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30251487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 30330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 303929219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3052005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 3053005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 3054005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 3055005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 3056005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 30577890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 30587890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 30597890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 30607890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 30617890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 30627890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 30688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 30928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3115e5561984951366b67b7405a85486c62320cbcaabMady Mellor private boolean performStylusButtonPressAction(MotionEvent ev) { 3116e5561984951366b67b7405a85486c62320cbcaabMady Mellor if (ev.getToolType(0) == MotionEvent.TOOL_TYPE_STYLUS 3117e5561984951366b67b7405a85486c62320cbcaabMady Mellor && ev.isButtonPressed(MotionEvent.BUTTON_SECONDARY) 3118e5561984951366b67b7405a85486c62320cbcaabMady Mellor && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 3119e5561984951366b67b7405a85486c62320cbcaabMady Mellor final View child = getChildAt(mMotionPosition - mFirstPosition); 3120e5561984951366b67b7405a85486c62320cbcaabMady Mellor if (child != null) { 3121e5561984951366b67b7405a85486c62320cbcaabMady Mellor final int longPressPosition = mMotionPosition; 3122e5561984951366b67b7405a85486c62320cbcaabMady Mellor final long longPressId = mAdapter.getItemId(mMotionPosition); 3123e5561984951366b67b7405a85486c62320cbcaabMady Mellor if (performLongPress(child, longPressPosition, longPressId)) { 3124e5561984951366b67b7405a85486c62320cbcaabMady Mellor mTouchMode = TOUCH_MODE_REST; 3125e5561984951366b67b7405a85486c62320cbcaabMady Mellor setPressed(false); 3126e5561984951366b67b7405a85486c62320cbcaabMady Mellor child.setPressed(false); 3127e5561984951366b67b7405a85486c62320cbcaabMady Mellor return true; 3128e5561984951366b67b7405a85486c62320cbcaabMady Mellor } 3129e5561984951366b67b7405a85486c62320cbcaabMady Mellor } 3130e5561984951366b67b7405a85486c62320cbcaabMady Mellor } 3131e5561984951366b67b7405a85486c62320cbcaabMady Mellor return false; 3132e5561984951366b67b7405a85486c62320cbcaabMady Mellor } 3133e5561984951366b67b7405a85486c62320cbcaabMady Mellor 31348350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 3136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 3137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 31381e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 31391e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 3140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 31411e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 3142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 3143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 3144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3166fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 3167fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 3168fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 3169fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 3170fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 3171fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 3172fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 3173fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 3174fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 3175fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3176fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3177fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3178fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3179fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3180fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3205df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3206df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3207df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3208df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3209df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 321124d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3212dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3213dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3214dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3215df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3216dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3218dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 322045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 322145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 322245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 322345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3237b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette @Override 3238b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette public void dispatchDrawableHotspotChanged(float x, float y) { 3239b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Don't dispatch hotspot changes to children. We'll manually handle 3240b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // calling drawableHotspotChanged on the correct child. 3241b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 3242b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3288d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private final class CheckForTap implements Runnable { 3289d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float x; 3290d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float y; 3291d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 32928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3301b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final float[] point = mTmpPoint; 3302b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[0] = x; 3303b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[1] = y; 3304b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette transformPointToViewLocal(point, child); 3305b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette child.drawableHotspotChanged(point[0], point[1]); 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3308079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3309079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3310e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 3316d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette final Drawable d = mSelector.getCurrent(); 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33248390fab6f4c305e89e1eb32bbf82c74a55f79424Alan Viverette mSelector.setHotspot(x, y); 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3344c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private boolean startScrollIfNeeded(int x, int y, MotionEvent vtev) { 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 334778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 335096d62aff0f97557bc15de98e145d9345288d060cAdam Powell if ((overscroll || distance > mTouchSlop) && 335196d62aff0f97557bc15de98e145d9345288d060cAdam Powell (getNestedScrollAxes() & SCROLL_AXIS_VERTICAL) == 0) { 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 335378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 335478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 335578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 335678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 335778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 335878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 335978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 336274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 336913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 337013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 337113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 337213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 3373c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded(x, y, vtev); 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3380c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private void scrollIfNeeded(int x, int y, MotionEvent vtev) { 338196d62aff0f97557bc15de98e145d9345288d060cAdam Powell int rawDeltaY = y - mMotionY; 338243943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollOffsetCorrection = 0; 338343943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollConsumedCorrection = 0; 338443943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee if (mLastY == Integer.MIN_VALUE) { 338543943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee rawDeltaY -= mMotionCorrection; 338643943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee } 3387e0e4217330fc3fa86046c284696df3b2d9785632Brian Attwell if (dispatchNestedPreScroll(0, mLastY != Integer.MIN_VALUE ? mLastY - y : -rawDeltaY, 3388e0e4217330fc3fa86046c284696df3b2d9785632Brian Attwell mScrollConsumed, mScrollOffset)) { 3389aab726c53e761752e506471408b28673387cd10fAdam Powell rawDeltaY += mScrollConsumed[1]; 3390fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell scrollOffsetCorrection = -mScrollOffset[1]; 3391fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell scrollConsumedCorrection = mScrollConsumed[1]; 339296d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (vtev != null) { 339396d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.offsetLocation(0, mScrollOffset[1]); 3394744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset += mScrollOffset[1]; 339596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 339696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 339743943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee final int deltaY = rawDeltaY; 339843943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int incrementalDeltaY = 3399e2e19391d422b6abb6abccb0e412debdf4a67716Yorke Lee mLastY != Integer.MIN_VALUE ? y - mLastY + scrollConsumedCorrection : deltaY; 340096d62aff0f97557bc15de98e145d9345288d060cAdam Powell int lastYCorrection = 0; 340178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 340278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 340378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 340478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 340578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 340678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 340778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 341078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 341178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 341278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 341378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 341478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 341578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 341678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 341778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 341878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 341978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 342078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 342178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 342278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 342378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 342478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 342778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 342878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 342978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 343078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 343178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 343278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 343378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 343478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 343678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 343778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 343878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 343978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 344078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 344178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 344278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 344378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 344478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 344578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 344678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 344778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 344878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 344978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 345078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 345178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 345278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 345378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 345478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 345578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 345678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 345778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 345878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 345996d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (dispatchNestedScroll(0, overscroll - incrementalDeltaY, 0, overscroll, 346096d62aff0f97557bc15de98e145d9345288d060cAdam Powell mScrollOffset)) { 346196d62aff0f97557bc15de98e145d9345288d060cAdam Powell lastYCorrection -= mScrollOffset[1]; 346211d0069f9228400943e9932e3286babb2b5f4135Adam Powell if (vtev != null) { 346311d0069f9228400943e9932e3286babb2b5f4135Adam Powell vtev.offsetLocation(0, mScrollOffset[1]); 3464744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset += mScrollOffset[1]; 346511d0069f9228400943e9932e3286babb2b5f4135Adam Powell } 346696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } else { 3467c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell final boolean atOverscrollEdge = overScrollBy(0, overscroll, 3468c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 0, mScrollY, 0, 0, 0, mOverscrollDistance, true); 3469c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 3470c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (atOverscrollEdge && mVelocityTracker != null) { 3471c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell // Don't allow overfling if we're at the edge 3472c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mVelocityTracker.clear(); 347378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 347478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 347596d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int overscrollMode = getOverScrollMode(); 347696d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 347796d62aff0f97557bc15de98e145d9345288d060cAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 347896d62aff0f97557bc15de98e145d9345288d060cAdam Powell !contentFits())) { 3479c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (!atOverscrollEdge) { 3480c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mDirection = 0; // Reset when entering overscroll. 3481c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3482c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } 3483c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (incrementalDeltaY > 0) { 34842897a6fdedd23efe96cd373886da78f1f1d18442Adam Powell mEdgeGlowTop.onPull((float) -overscroll / getHeight(), 3485c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 348696d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowBottom.isFinished()) { 348796d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowBottom.onRelease(); 348896d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3489f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidateTopGlow(); 3490c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } else if (incrementalDeltaY < 0) { 3491c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight(), 3492c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 349396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowTop.isFinished()) { 349496d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowTop.onRelease(); 349596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3496f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidateBottomGlow(); 349778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 349878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 349978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 350078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3501fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mMotionY = y + lastYCorrection + scrollOffsetCorrection; 350278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 350343943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee mLastY = y + lastYCorrection + scrollOffsetCorrection; 350478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 350578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 350678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 350778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 350878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 350978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 351078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 351178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 351278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 351378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 351478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 351578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 351678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 351778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 351878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 351978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 352078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 352178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 352278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 352378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 352478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 352578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 352678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 352778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 352878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 352978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 353078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 3531c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.onPull((float) overScrollDistance / getHeight(), 3532c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 353378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 353478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 353578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3536f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidateTopGlow(); 353778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 3538c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight(), 3539c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 354078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 354178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 354278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3543f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidateBottomGlow(); 354478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 354578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 354678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 354778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 354878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 354978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 35509d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 35519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 35529d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 355378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 355478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 35559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 35569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 355778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 355878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 355978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 356078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 356178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 356278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 356378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 356478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 356578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 3566fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mMotionY = y + scrollOffsetCorrection; 356778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 356878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3569fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mLastY = y + lastYCorrection + scrollOffsetCorrection; 357078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 357178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 357278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 357378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 357478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 3575f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu private void invalidateTopGlow() { 3576f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu if (mEdgeGlowTop == null) { 3577f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu return; 3578f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu } 3579f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final boolean clipToPadding = getClipToPadding(); 3580f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int top = clipToPadding ? mPaddingTop : 0; 3581f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int left = clipToPadding ? mPaddingLeft : 0; 3582f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int right = clipToPadding ? getWidth() - mPaddingRight : getWidth(); 3583f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidate(left, top, right, top + mEdgeGlowTop.getMaxHeight()); 3584f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu } 3585f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu 3586f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu private void invalidateBottomGlow() { 3587f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu if (mEdgeGlowBottom == null) { 3588f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu return; 3589f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu } 3590f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final boolean clipToPadding = getClipToPadding(); 3591f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int bottom = clipToPadding ? getHeight() - mPaddingBottom : getHeight(); 3592f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int left = clipToPadding ? mPaddingLeft : 0; 3593f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int right = clipToPadding ? getWidth() - mPaddingRight : getWidth(); 3594f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidate(left, bottom - mEdgeGlowBottom.getMaxHeight(), right, bottom); 3595f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu } 3596f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu 35978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36101e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36174032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 36184032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 36194032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 36230fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3633dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3634dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3635dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3636dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3637dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3638dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 36391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 36401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 36411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 36421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 3643462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 364428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 364528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 364628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 364728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 364828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 364928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 365028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 365196d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 365296d62aff0f97557bc15de98e145d9345288d060cAdam Powell 3653fb99ba895e9921f46af38d5fe8c27c88676f7a65Alan Viverette if (mFastScroll != null && mFastScroll.onTouchEvent(ev)) { 3654fb99ba895e9921f46af38d5fe8c27c88676f7a65Alan Viverette return true; 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 365682f3495b146b267f3786997752cef25310176349Romain Guy 365713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 365896d62aff0f97557bc15de98e145d9345288d060cAdam Powell final MotionEvent vtev = MotionEvent.obtain(ev); 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 3661744beffb6ae76d682c559970bb634722c835a32eAdam Powell if (actionMasked == MotionEvent.ACTION_DOWN) { 3662744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset = 0; 3663744beffb6ae76d682c559970bb634722c835a32eAdam Powell } 3664744beffb6ae76d682c559970bb634722c835a32eAdam Powell vtev.offsetLocation(0, mNestedYOffset); 36658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 36668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 36678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 36688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 367296d62aff0f97557bc15de98e145d9345288d060cAdam Powell onTouchMove(ev, vtev); 36738fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36748fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36759d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 36768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 36778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 36788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3680e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36818fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 36828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 36838fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3685e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36868fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 36878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 36888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 36898fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 36908fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 36918fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 36928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 36938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 36948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 36958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 36968fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 36988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3700fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 37018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 37028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 37038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 37048fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 37058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 37068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 37078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 37088fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 37098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 37108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 37118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 37128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 37138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 37148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 37158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 37168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 37178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 37188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 37198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3720fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3721e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 372396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mVelocityTracker != null) { 372496d62aff0f97557bc15de98e145d9345288d060cAdam Powell mVelocityTracker.addMovement(vtev); 372596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 372696d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.recycle(); 3727e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3728e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3729e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3730e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 37313d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 37323d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 37333d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 37343d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3735e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3736e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3737e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3738e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3739e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3740e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 37413d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 37423d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3743e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3744e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 37453d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3746e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3747e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3748e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 37493d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3750e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 37513d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 37523d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 37533d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 37543d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 37553d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 37563d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 37573d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 37583d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 37593d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 37603d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 37613d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3762e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 37633d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3764e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3765e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3766e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3767e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37683d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3769d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.x = ev.getX(); 3770d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.y = ev.getY(); 3771e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3772e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37732585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 37746f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3775e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3776e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 37773d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3778e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 37796f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 37803d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3781e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3782e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3783e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3784e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3785e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37866f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3787b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3788e5561984951366b67b7405a85486c62320cbcaabMady Mellor && (performButtonActionOnTouchDown(ev) || performStylusButtonPressAction(ev))) { 3789e5561984951366b67b7405a85486c62320cbcaabMady Mellor removeCallbacks(mPendingCheckForTap); 3790e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3791e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3792e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 379396d62aff0f97557bc15de98e145d9345288d060cAdam Powell private void onTouchMove(MotionEvent ev, MotionEvent vtev) { 3794e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3795e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3796e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3797e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3798e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3799e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3800e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3801e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3802e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3803e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3804e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3805e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 38068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 38078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3808e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 38098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 38108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 38118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 38128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 381374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 3814c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, vtev)) { 381574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 381674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 381774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 381874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 3819b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 38203d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 38213d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 382274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 382374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 382474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 382574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 382674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 382774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 382874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 382974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 3830b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } else if (motionView != null) { 3831e5561984951366b67b7405a85486c62320cbcaabMady Mellor if (performStylusButtonPressAction(ev)) { 3832e5561984951366b67b7405a85486c62320cbcaabMady Mellor removeCallbacks(mPendingCheckForTap); 3833e5561984951366b67b7405a85486c62320cbcaabMady Mellor removeCallbacks(mPendingCheckForLongPress); 3834e5561984951366b67b7405a85486c62320cbcaabMady Mellor } 3835e5561984951366b67b7405a85486c62320cbcaabMady Mellor 3836b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Still within bounds, update the hotspot. 3837b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final float[] point = mTmpPoint; 3838b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[0] = x; 3839b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[1] = y; 3840b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette transformPointToViewLocal(point, motionView); 3841b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette motionView.drawableHotspotChanged(point[0], point[1]); 384274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 38438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 38448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 38458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 3846c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded((int) ev.getX(pointerIndex), y, vtev); 38478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3849e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3851e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3852e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3853e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3854e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3855e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3856e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3857e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 385874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3859e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3860e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3861e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3862e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 386374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 386474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 386574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 386674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 386774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 386874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3869e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 387074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 387174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 387274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 387474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 387674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 387774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3878e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 387974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 388074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 388174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 388274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 388374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 388474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 388574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 388674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 388774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 388874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 388974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 389074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3892c80ad99a33ee49d0bac994c1749ff24d243c3862Alan Viverette mSelector.setHotspot(x, ev.getY()); 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 389474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 389574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 389674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 389774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 389874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 389974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 390074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 390174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 390274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 390374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 3904462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (!mDataChanged && !mIsDetaching && isAttachedToWindow()) { 390574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 390674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 390774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 390874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 390974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 391074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 391174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 391274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 391374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 391474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 391574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 391674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 391774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3920e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3921e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3922e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3923e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3924e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3925e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3926e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3927e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3928e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3929e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3930e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3931e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3932e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3933e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3934e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3935e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3936e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3937e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3938e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3939e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3940e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3941e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3942e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3943e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3944e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3945e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3946aab726c53e761752e506471408b28673387cd10fAdam Powell boolean flingVelocity = Math.abs(initialVelocity) > mMinimumVelocity; 3947aab726c53e761752e506471408b28673387cd10fAdam Powell if (flingVelocity && 3948e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3949e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3950e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3951e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 39529413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (!dispatchNestedPreFling(0, -initialVelocity)) { 39539413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (mFlingRunnable == null) { 39549413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable = new FlingRunnable(); 39559413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } 39569413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 39579413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable.start(-initialVelocity); 39589413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell dispatchNestedFling(0, -initialVelocity, true); 39599413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } else { 39609413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mTouchMode = TOUCH_MODE_REST; 39619413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3962e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3963e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 39646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 39656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3966e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3967e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3968e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3969e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3970e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 39716198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 3972fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell if (flingVelocity && !dispatchNestedPreFling(0, -initialVelocity)) { 3973aab726c53e761752e506471408b28673387cd10fAdam Powell dispatchNestedFling(0, -initialVelocity, false); 3974aab726c53e761752e506471408b28673387cd10fAdam Powell } 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3977e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3978e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3979e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3981e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3983e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3984e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3985e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3987e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3988e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3989e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3991e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3992e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3993e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3994e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3995e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3998e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3999e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 40004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4001e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4003e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 4004e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 4005e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4008e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 4009e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 401074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 4011e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 4012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4013e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 4014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4015e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 4016e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 4017e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 4018e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4020e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 40214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4022e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 4023e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 4024e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 40254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 4026e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 40274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4028e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 4029e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 4030e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 4031e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 4032e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 40334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 4034e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 40354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 40369bc30d31322848d61f518c1db43544988faaba8fAdam Powell 4037e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 4038e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 40399bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 4040e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 4041e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 4042e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 4043e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 404474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 4045e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 4046e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 4047e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 4048e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 404974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 4050e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4053e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 4054e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 4055e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 4056e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 4057e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40610a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 40620a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 40630a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 40640a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 40650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 40660a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 40670a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 407233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 407333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 407433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 407533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 407633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 407733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 407833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 407933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 4080275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 408133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 408233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 408333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 408433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 408533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 408633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 408733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 408833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 408933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 409033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 40914884c642882af0a279673d7a95485069e58beb69Adam Powell /** 40924884c642882af0a279673d7a95485069e58beb69Adam Powell * Initiate a fling with the given velocity. 40934884c642882af0a279673d7a95485069e58beb69Adam Powell * 40944884c642882af0a279673d7a95485069e58beb69Adam Powell * <p>Applications can use this method to manually initiate a fling as if the user 40954884c642882af0a279673d7a95485069e58beb69Adam Powell * initiated it via touch interaction.</p> 40964884c642882af0a279673d7a95485069e58beb69Adam Powell * 4097fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell * @param velocityY Vertical velocity in pixels per second. Note that this is velocity of 4098fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell * content, not velocity of a touch that initiated the fling. 40994884c642882af0a279673d7a95485069e58beb69Adam Powell */ 41004884c642882af0a279673d7a95485069e58beb69Adam Powell public void fling(int velocityY) { 41014884c642882af0a279673d7a95485069e58beb69Adam Powell if (mFlingRunnable == null) { 41024884c642882af0a279673d7a95485069e58beb69Adam Powell mFlingRunnable = new FlingRunnable(); 41034884c642882af0a279673d7a95485069e58beb69Adam Powell } 41044884c642882af0a279673d7a95485069e58beb69Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4105fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mFlingRunnable.start(velocityY); 41064884c642882af0a279673d7a95485069e58beb69Adam Powell } 41074884c642882af0a279673d7a95485069e58beb69Adam Powell 410833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 410996d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 411096d62aff0f97557bc15de98e145d9345288d060cAdam Powell return ((nestedScrollAxes & SCROLL_AXIS_VERTICAL) != 0); 411196d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 411296d62aff0f97557bc15de98e145d9345288d060cAdam Powell 411396d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 411496d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScrollAccepted(View child, View target, int axes) { 411596d62aff0f97557bc15de98e145d9345288d060cAdam Powell super.onNestedScrollAccepted(child, target, axes); 411696d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 411796d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 411896d62aff0f97557bc15de98e145d9345288d060cAdam Powell 411996d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 412096d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 412196d62aff0f97557bc15de98e145d9345288d060cAdam Powell int dxUnconsumed, int dyUnconsumed) { 412296d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int motionIndex = getChildCount() / 2; 412396d62aff0f97557bc15de98e145d9345288d060cAdam Powell final View motionView = getChildAt(motionIndex); 412496d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int oldTop = motionView != null ? motionView.getTop() : 0; 412596d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView == null || trackMotionScroll(-dyUnconsumed, -dyUnconsumed)) { 412696d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myUnconsumed = dyUnconsumed; 412796d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myConsumed = 0; 412896d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView != null) { 412996d62aff0f97557bc15de98e145d9345288d060cAdam Powell myConsumed = motionView.getTop() - oldTop; 413096d62aff0f97557bc15de98e145d9345288d060cAdam Powell myUnconsumed -= myConsumed; 413196d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 413296d62aff0f97557bc15de98e145d9345288d060cAdam Powell dispatchNestedScroll(0, myConsumed, 0, myUnconsumed, null); 413396d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 413496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 413596d62aff0f97557bc15de98e145d9345288d060cAdam Powell 413696d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 413796d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 413896d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int childCount = getChildCount(); 413996d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!consumed && childCount > 0 && canScrollList((int) velocityY) && 414096d62aff0f97557bc15de98e145d9345288d060cAdam Powell Math.abs(velocityY) > mMinimumVelocity) { 414196d62aff0f97557bc15de98e145d9345288d060cAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 414296d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mFlingRunnable == null) { 414396d62aff0f97557bc15de98e145d9345288d060cAdam Powell mFlingRunnable = new FlingRunnable(); 414496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 41459413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (!dispatchNestedPreFling(0, velocityY)) { 41469413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable.start((int) velocityY); 41479413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } 414896d62aff0f97557bc15de98e145d9345288d060cAdam Powell return true; 414996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 415096d62aff0f97557bc15de98e145d9345288d060cAdam Powell return dispatchNestedFling(velocityX, velocityY, consumed); 415196d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 415296d62aff0f97557bc15de98e145d9345288d060cAdam Powell 415396d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 4156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 4157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4158f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final boolean clipToPadding = getClipToPadding(); 4159f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int width; 4160f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int height; 4161f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int translateX; 4162f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int translateY; 4163f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu 4164f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu if (clipToPadding) { 4165f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu width = getWidth() - mPaddingLeft - mPaddingRight; 4166f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu height = getHeight() - mPaddingTop - mPaddingBottom; 4167f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu translateX = mPaddingLeft; 4168f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu translateY = mPaddingTop; 4169f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu } else { 4170f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu width = getWidth(); 4171f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu height = getHeight(); 4172f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu translateX = 0; 4173f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu translateY = 0; 4174f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu } 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 4176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 4177f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu canvas.clipRect(translateX, translateY, 4178f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu translateX + width ,translateY + mEdgeGlowTop.getMaxHeight()); 4179f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess) + translateY; 4180f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu canvas.translate(translateX, edgeY); 4181f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu mEdgeGlowTop.setSize(width, height); 4182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 4183f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidateTopGlow(); 4184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 4188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 4189f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu canvas.clipRect(translateX, translateY + height - mEdgeGlowBottom.getMaxHeight(), 4190f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu translateX + width, translateY + height); 4191f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int edgeX = -width + translateX; 4192f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu final int edgeY = Math.max(getHeight(), scrollY + mLastPositionDistanceGuess) 4193f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu - (clipToPadding ? mPaddingBottom : 0); 41949d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 4195e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 4196a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 4197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 4198f36c061909e200dbddb1453da1e2cc6373cf955cDoris Liu invalidateBottomGlow(); 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 420513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 420613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 420713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 420813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 420913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 421013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 421113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 421213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 421313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 421413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 421513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 421613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 421713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 421813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 421913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 422013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 422113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 422213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 422313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 422413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 422513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 422613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 422713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 422813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 422913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 423013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 423113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 423213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 423313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4235a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 42368636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptHoverEvent(event)) { 4237a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 4238a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4239a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4240a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 4241a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4242a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4243a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 4245744beffb6ae76d682c559970bb634722c835a32eAdam Powell final int actionMasked = ev.getActionMasked(); 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 42470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 42481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 42491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 42501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 42511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4252462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 425328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 425428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 425528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 425628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 425728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 425828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 425928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 42608636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptTouchEvent(ev)) { 42610ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4264744beffb6ae76d682c559970bb634722c835a32eAdam Powell switch (actionMasked) { 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 426679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 4267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 4268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 4269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 4270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 42734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 42744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 42754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 427779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 428913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 429013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 4291744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset = 0; 429296d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 429379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 42944b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 42954b4f40f84e72579417604143e5f42115769649b8Romain Guy } 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 43022585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 43032585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 43042585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 43052585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 43062585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 43074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 430813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 430913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 4310c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, null)) { 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 431813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 43214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 432213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 432496d62aff0f97557bc15de98e145d9345288d060cAdam Powell stopNestedScroll(); 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 43294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 43304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 43314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 43384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 43394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 43404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 43414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 43424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 43434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 43444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 43454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 43464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 43474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 43494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 43504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 43514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 43860046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4408d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 44098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4410d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4411d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4412d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4414d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4415d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4416d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4417d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4418d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4419d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4420d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4421b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4422b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4423d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4424d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4425d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4426d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4427d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4428b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4429d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4430d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4431d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4432d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4433d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4434d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 443579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 443979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 44420b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 44461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 44551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 44561cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 44571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 44641fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4467e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 44720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4473044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4474044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 44771fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 44924032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 44934032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 44944032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 44954032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 44964032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 44991fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 45020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 45050b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 45081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4511d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 451479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4515d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 451621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 451721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 451821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4519d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 45205e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 45215e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 45225e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 45235e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 45245e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4525d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4526d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4527d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4528d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 453379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 453479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4535d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4538d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4539d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4540d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4541d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4542d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 45447f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 45457f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 45467f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 45477f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 454879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 454979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 455079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 455179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4577d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4581d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 45909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 45919d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 45993cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 46003cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 46013cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 46069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 46081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4617d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4631044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4632044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4635044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4636044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4637044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4638044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4639044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4640044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4641044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4642044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4643044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4644044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4645044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4646044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 46491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The amount of friction applied to flings. The default value 4662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * is {@link ViewConfiguration#getScrollFriction}. 4663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setFriction(float friction) { 4665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.mScroller.setFriction(friction); 4669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets a scale factor for the fling velocity. The initial scale 4673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * factor is 1.0. 4674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scale The scale factor to multiply the velocity by. 4676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setVelocityScale(float scale) { 4678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mVelocityScale = scale; 4679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Override this for better control over position scrolling. 4683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller createPositionScroller() { 4685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new PositionScroller(); 4686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4687e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed. 4691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position) { 4694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position); 4698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Number of milliseconds to use for the scroll 4711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, duration); 4717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. 4725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset) { 4731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47343b415e41cc2be7ede25be203b447143c3f8c046bAlan Viverette mPositionScroller.startWithOffset(position, offset); 4735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47364032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed, but it will 4740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * stop early if scrolling further would scroll boundPosition out of 4741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view. 4742cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * 4743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param boundPosition Do not scroll if it would move this adapter 4745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * position out of view. 4746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position, int boundPosition) { 4748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position, boundPosition); 4752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4753aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll by distance pixels over duration milliseconds. 4756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param distance Distance to scroll in pixels. 4757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Duration of the scroll animation in milliseconds. 4758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollBy(int distance, int duration) { 4760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, false); 4761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4762e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollBy(int distance, int duration, boolean linear) { 4764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No sense starting to scroll if we're not going anywhere 4769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 4770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount; 4772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int topLimit = getPaddingTop(); 4773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomLimit = getHeight() - getPaddingBottom(); 47744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (distance == 0 || mItemCount == 0 || childCount == 0 || 4776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (lastPos == mItemCount && 4778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 4779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.endFling(); 4780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 4781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 4782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.startScroll(distance, duration, linear); 4786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Allows RemoteViews to scroll relatively to a position. 4791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollByOffset(int position) { 4793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = -1; 4794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getFirstVisiblePosition(); 4796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > 0) { 4797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getLastVisiblePosition(); 4798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47994032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index > -1) { 4801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(index - getFirstVisiblePosition()); 4802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child != null) { 4803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Rect visibleRect = new Rect(); 4804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getGlobalVisibleRect(visibleRect)) { 4805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the child is partially visible 4806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childRectArea = child.getWidth() * child.getHeight(); 4807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int visibleRectArea = visibleRect.width() * visibleRect.height(); 4808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette float visibleArea = (visibleRectArea / (float) childRectArea); 4809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float visibleThreshold = 0.75f; 4810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((position < 0) && (visibleArea < visibleThreshold)) { 4811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the top index is not perceivably visible so offset 4812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that top index as well 4813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ++index; 4814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the bottom index is not perceivably visible so offset 4816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that bottom index as well 4817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette --index; 4818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 48244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createScrollingCache() { 4826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 4827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(true); 4828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(true); 4829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = true; 4830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void clearScrollingCache() { 4834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isHardwareAccelerated()) { 4835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mClearScrollingCache == null) { 4836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mClearScrollingCache = new Runnable() { 4837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 4838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 4839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mCachingStarted) { 4840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = false; 4841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(false); 4842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 4843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(false); 4844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isAlwaysDrawnWithCacheEnabled()) { 4846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4849aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4850161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4851e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette post(mClearScrollingCache); 4853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4855e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 4858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y the amount of pixels to scroll by vertically 4860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #canScrollList(int) 4861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void scrollListBy(int y) { 4863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette trackMotionScroll(-y, -y); 4864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 48654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction Negative to check scrolling up, positive to check 4870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrolling down. 4871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if the list can be scrolled in the specified direction, 4872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * false otherwise. 4873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #scrollListBy(int) 4874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean canScrollList(int direction) { 4876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 48804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (direction > 0) { 4884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 4885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPosition = firstPosition + childCount; 4886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 4887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 4890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4892e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Track a motion scroll 4895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 4897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * began. Positive numbers mean the user's finger is moving down the screen. 4898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param incrementalDeltaY Change in deltaY from the previous event. 4899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if we're already at the beginning/end of the list and have nothing to do. 4900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 4902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 4905322171b333a1c796fcc1428a96ea1d854a3881faErik } 4906322171b333a1c796fcc1428a96ea1d854a3881faErik 4907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 49094032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4911aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // "effective padding" In this case is the amount of padding that affects 4913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // how much space should not be filled by items. If we don't clip to padding 4914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there is no effective padding. 4915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingTop = 0; 4916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingBottom = 0; 4917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingTop = listPadding.top; 4919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingBottom = listPadding.bottom; 4920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4921aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // FIXME account for grid vertical spacing too? 4923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceAbove = effectivePaddingTop - firstTop; 4924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = getHeight() - effectivePaddingBottom; 4925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceBelow = lastBottom - end; 49261fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = getHeight() - mPaddingBottom - mPaddingTop; 4928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (deltaY < 0) { 4929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.max(-(height - 1), deltaY); 4930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.min(height - 1, deltaY); 4932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4933e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (incrementalDeltaY < 0) { 4935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 4936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 4938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4939e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4941e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update our guesses for where the first and last views are 4943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition == 0) { 4944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess = firstTop - listPadding.top; 4945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess += incrementalDeltaY; 4947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount == mItemCount) { 4949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess += incrementalDeltaY; 4952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4953234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollDown = (firstPosition == 0 && 4955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette firstTop >= listPadding.top && incrementalDeltaY >= 0); 4956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 4957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 4958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (cannotScrollDown || cannotScrollUp) { 4960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return incrementalDeltaY != 0; 4961e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4962e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean down = incrementalDeltaY < 0; 4964e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean inTouchMode = isInTouchMode(); 4966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (inTouchMode) { 4967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette hideSelector(); 4968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4969e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int headerViewsCount = getHeaderViewsCount(); 4971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int footerViewsStart = mItemCount - getFooterViewsCount(); 4972e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int start = 0; 4974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = 0; 4975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int top = -incrementalDeltaY; 4978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette top += listPadding.top; 4980e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getBottom() >= top) { 4984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4991632af849240f54f91b2b4fde77d3a51c4d045f74Alan Viverette child.clearAccessibilityFocus(); 4992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4995e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int bottom = getHeight() - incrementalDeltaY; 4998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette bottom -= listPadding.bottom; 5000e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 5001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 5002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 5003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getTop() <= bottom) { 5004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start = i; 5007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 5008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 5009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 5010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 5011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 5012632af849240f54f91b2b4fde77d3a51c4d045f74Alan Viverette child.clearAccessibilityFocus(); 5013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 5014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5015e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 5016e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 5017e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 5018e69370e16852c576890dd70733ad40669fd9367eAdam Powell 5019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 5020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = true; 5022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 5024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette detachViewsFromParent(start, count); 5025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.removeSkippedScrap(); 5026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 50274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // invalidate before moving the children to avoid unnecessary invalidate 5029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // calls to bubble up from the children all the way to the top 5030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!awakenScrollBars()) { 5031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 5032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offsetChildrenTopAndBottom(incrementalDeltaY); 5035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 5037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPosition += count; 5038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette fillGap(down); 5043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 5046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectedPosition - mFirstPosition; 5047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 5048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(mSelectedPosition, getChildAt(childIndex)); 5049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mSelectorPosition != INVALID_POSITION) { 5051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectorPosition - mFirstPosition; 5052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 5053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(INVALID_POSITION, getChildAt(childIndex)); 5054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorRect.setEmpty(); 5057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = false; 50604032252c997be9f5d013054dc23ace855007b3a5Adam Powell 5061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5062e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 5063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of header views in the list. Header views are special views 5068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the top of the list that should not be recycled during a layout. 5069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of header views, 0 in the default implementation. 50714bede9e425875542976a422222510fa4056a8339Romain Guy */ 5072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeaderViewsCount() { 5073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 50744bede9e425875542976a422222510fa4056a8339Romain Guy } 507521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 507621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 5077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of footer views in the list. Footer views are special views 5078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the bottom of the list that should not be recycled during a layout. 50794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 5080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of footer views, 0 in the default implementation. 508121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 5082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getFooterViewsCount() { 5083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 508421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 50854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 50864bede9e425875542976a422222510fa4056a8339Romain Guy /** 5087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fills the gap left open by a touch-scroll. During a touch scroll, children that 5088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * remain on screen are shifted and the other ones are discarded. The role of this 5089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * method is to fill the gap thus created by performing a partial layout in the 5090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * empty space. 5091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param down true if the scroll is going down, false if it is going up 5093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void fillGap(boolean down); 5095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void hideSelector() { 5097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition != INVALID_POSITION) { 5098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLayoutMode != LAYOUT_SPECIFIC) { 5099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mSelectedPosition; 5100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 5102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mNextSelectedPosition; 5103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectedPositionInt(INVALID_POSITION); 5105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(INVALID_POSITION); 5106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedTop = 0; 5107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5109322171b333a1c796fcc1428a96ea1d854a3881faErik 5110322171b333a1c796fcc1428a96ea1d854a3881faErik /** 5111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 5112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 5113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of items available in the adapter 5114322171b333a1c796fcc1428a96ea1d854a3881faErik */ 5115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int reconcileSelectedPosition() { 5116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = mSelectedPosition; 5117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 5118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = mResurrectToPosition; 5119322171b333a1c796fcc1428a96ea1d854a3881faErik } 5120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.max(0, position); 5121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.min(position, mItemCount - 1); 5122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return position; 5123322171b333a1c796fcc1428a96ea1d854a3881faErik } 5124322171b333a1c796fcc1428a96ea1d854a3881faErik 5125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling 5127e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 5128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 5129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row containing y 5130e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 5131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract int findMotionRow(int y); 5132e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 5133e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 5134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling. 5135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 5137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row closest to y 5138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int findClosestMotionRow(int y) { 5140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 5142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return INVALID_POSITION; 5143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int motionRow = findMotionRow(y); 5146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Causes all the views to be rebuilt and redrawn. 5151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void invalidateViews() { 5153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 5154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 5155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 5156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 5157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If there is a selection returns false. 5161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Otherwise resurrects the selection and returns true if resurrected. 5162499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelectionIfNeeded() { 5164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && resurrectSelection()) { 5165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes the item at the supplied position selected. 51732f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 5174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the position of the new selection 51752f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 5176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void setSelectionInt(int position); 5177ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5178ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 5179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Attempt to bring the selection back if the user is switching from touch 5180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to trackball mode 5181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return Whether selection was set to something. 5182ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 5183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelection() { 5184ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 5185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount <= 0) { 5187ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 5188ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 5189ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedTop = 0; 5191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedPos; 5192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenTop = mListPadding.top; 5193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenBottom = mBottom - mTop - mListPadding.bottom; 5194ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 5195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int toPosition = mResurrectToPosition; 5196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean down = true; 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 5199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = toPosition; 5200bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 5201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View selected = getChildAt(selectedPos - mFirstPosition); 5202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = selected.getTop(); 5203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedBottom = selected.getBottom(); 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are scrolled, don't get in the fade 5206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedTop < childrenTop) { 5207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenTop + getVerticalFadingEdgeLength(); 5208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (selectedBottom > childrenBottom) { 5209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenBottom - selected.getMeasuredHeight() 5210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette - getVerticalFadingEdgeLength(); 5211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition < firstPosition) { 5214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Default to selecting whatever is first 5215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition; 5216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == 0) { 5221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remember the position of the first item 5222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we are scrolled at all 5224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition > 0 || top < childrenTop) { 5225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are scrolled, don't select anything that is 5226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // in the fade region 5227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenTop += getVerticalFadingEdgeLength(); 5228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (top >= childrenTop) { 5231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found a view whose top is fully visisble 5232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int itemCount = mItemCount; 5239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette down = false; 5240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + childCount - 1; 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 5243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 5245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = v.getBottom(); 5246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == childCount - 1) { 5248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 5250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenBottom -= getVerticalFadingEdgeLength(); 5251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom <= childrenBottom) { 5255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5261458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(mFlingRunnable); 5265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 5266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 5267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTouchMode = TOUCH_MODE_REST; 5269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearScrollingCache(); 5270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = selectedTop; 5271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = lookForSelectablePosition(selectedPos, down); 5272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 5273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 5274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectionInt(selectedPos); 5276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = INVALID_POSITION; 5279029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return selectedPos >= 0; 5283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void confirmCheckedPositionsById() { 5286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Clear out the positional check states, we'll rebuild it below from IDs. 5287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.clear(); 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean checkedCountChanged = false; 5290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 5291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long id = mCheckedIdStates.keyAt(checkedIndex); 5292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 5293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long lastPosId = mAdapter.getItemId(lastPos); 5295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id != lastPosId) { 5296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Look around to see if the ID is nearby. If not, uncheck it. 5297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 5298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 5299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean found = false; 5300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int searchPos = start; searchPos < end; searchPos++) { 5301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long searchId = mAdapter.getItemId(searchPos); 5302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id == searchId) { 5303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette found = true; 5304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(searchPos, true); 5305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.setValueAt(checkedIndex, searchPos); 5306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!found) { 5311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.delete(id); 5312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedIndex--; 5313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedItemCount--; 5314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedCountChanged = true; 5315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 5316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 5317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastPos, id, false); 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(lastPos, true); 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (checkedCountChanged && mChoiceActionMode != null) { 5326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode.invalidate(); 53279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 5328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void handleDataChanged() { 5332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = mItemCount; 5333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int lastHandledItemCount = mLastHandledItemCount; 5334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastHandledItemCount = mItemCount; 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 5337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette confirmCheckedPositionsById(); 5338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 53394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: In the future we can recycle these views based on stable ID instead. 5341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.clearTransientStateViews(); 5342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 5344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int newPos; 5345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectablePos; 5346029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Find the row we are supposed to sync to 5348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 5349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update this first, since setNextSelectedPositionInt inspects it 5350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 5354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mForceTranscriptScroll) { 5358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mForceTranscriptScroll = false; 5359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listBottom = getHeight() - getPaddingBottom(); 5364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastChild = getChildAt(childCount - 1); 5365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFirstPosition + childCount >= lastHandledItemCount && 5367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= listBottom) { 5368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Something new came in and we didn't scroll; give the user a clue that 5372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there's something new. 5373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette awakenScrollBars(); 5374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mSyncMode) { 5377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_SELECTED_POSITION: 5378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isInTouchMode()) { 5379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We saved our state when not in touch mode. (We know this because 5380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 5381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // restore in touch mode. Just leave mSyncPosition as it is (possibly 5382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // adjusting if the available range changed) and return. 5383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we can find a position in the new data with the same 5389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // id as the old selection. This will change mSyncPosition. 5390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = findSyncPosition(); 5391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= 0) { 5392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found it. Now verify that new selection is still selectable 5393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos == newPos) { 5395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Same row id is selected 5396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = newPos; 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSyncHeight == getHeight()) { 5399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are at the same height as when we saved state, try 5400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to restore the scroll position too. 5401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are not the same height as when the selection was saved, so 5404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // don't try to restore the exact position 5405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SET_SELECTION; 5406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Restore selection 5409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(newPos); 5410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_FIRST_POSITION: 5416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Leave mSyncPosition as it is -- just pin to available range 5417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5422ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 5423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 5425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We couldn't find matching data -- try to use the same position 5426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = getSelectedItemPosition(); 5427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pin position to the available range 5429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= count) { 5430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = count - 1; 5431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos < 0) { 5433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = 0; 5434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we select something selectable -- first look down 5437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Looking down didn't work -- try looking up 5444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, false); 5445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We already know where we want to resurrect the selection 5453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mResurrectToPosition >= 0) { 5454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Nothing is selected. Give up and reset everything. 5461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 5462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedPosition = INVALID_POSITION; 5463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedRowId = INVALID_ROW_ID; 5464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedPosition = INVALID_POSITION; 5465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedRowId = INVALID_ROW_ID; 5466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorPosition = INVALID_POSITION; 5469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkSelectionChanged(); 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void onDisplayHint(int hint) { 5474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onDisplayHint(hint); 5475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (hint) { 5476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case INVISIBLE: 5477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case VISIBLE: 5482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing()) { 5483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopupHidden = hint == INVISIBLE; 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Removes the filter window 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void dismissPopup() { 5494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null) { 5495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.dismiss(); 5496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Shows the filter window 5501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void showPopup() { 5503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we have a window before showing the popup 5504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getWindowVisibility() == View.VISIBLE) { 5505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionPopup(); 5507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we get focus if we are showing the popup 5508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkFocus(); 5509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void positionPopup() { 5513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int screenHeight = getResources().getDisplayMetrics().heightPixels; 5514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int[] xy = new int[2]; 5515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getLocationOnScreen(xy); 5516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: The 20 below should come from the theme 5517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: And the gravity should be defined in the theme as well 5518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!mPopup.isShowing()) { 5520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 5521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette xy[0], bottomGap); 5522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.update(xy[0], bottomGap, -1, -1); 5524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 55274e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 5528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * What is the distance between the source and destination rectangles given the direction of 5529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * focus navigation between them? The direction basically helps figure out more quickly what is 5530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * self evident by the relationship between the rects... 5531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param source the source rectangle 5533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param dest the destination rectangle 5534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction the direction 5535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the distance between the rectangles 55364e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 5537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static int getDistance(Rect source, Rect dest, int direction) { 5538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int sX, sY; // source x, y 5539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int dX, dY; // dest x, y 5540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (direction) { 5541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_RIGHT: 5542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right; 5543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left; 5545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_DOWN: 5548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.bottom; 5550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top; 5552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_LEFT: 5554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left; 5555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.right; 5557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_UP: 5560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top; 5562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.bottom; 5564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_FORWARD: 5566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_BACKWARD: 5567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right + source.width() / 2; 5568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 5573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("direction must be one of " 5574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 5575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 5577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaX = dX - sX; 5578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaY = dY - sY; 5579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return deltaY * deltaY + deltaX * deltaX; 5580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean isInFilterMode() { 5584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 55854e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sends a key to the text filter window 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param keyCode The keycode for the event 5591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param event The actual key event 5592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return True if the text filter handled the event, false otherwise. 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!acceptFilter()) { 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean handled = false; 5601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean okToSend = true; 5602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (keyCode) { 5603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_UP: 5604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_DOWN: 5605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_LEFT: 5606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_RIGHT: 5607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_CENTER: 5608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_ENTER: 5609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_BACK: 5612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && mPopup.isShowing()) { 5613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (event.getAction() == KeyEvent.ACTION_DOWN 5614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.getRepeatCount() == 0) { 5615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent.DispatcherState state = getKeyDispatcherState(); 5616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (state != null) { 5617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette state.startTracking(event, this); 5618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (event.getAction() == KeyEvent.ACTION_UP 5621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.isTracking() && !event.isCanceled()) { 5622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setText(""); 5624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_SPACE: 5629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Only send spaces once we are filtered 5630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = mFiltered; 5631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (okToSend) { 5635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent forwardEvent = event; 5638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (forwardEvent.getRepeatCount() > 0) { 5639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int action = event.getAction(); 5643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (action) { 5644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_DOWN: 5645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 5646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_UP: 5649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 5650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_MULTIPLE: 5653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyMultiple(keyCode, count, event); 5654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return handled; 5658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Return an InputConnection for editing of the filter text. 5662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isTextFilterEnabled()) { 5666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPublicInputConnection == null) { 5667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDefInputConnection = new BaseInputConnection(this, false); 5668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPublicInputConnection = new InputConnectionWrapper(outAttrs); 5669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 5671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 5672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mPublicInputConnection; 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private class InputConnectionWrapper implements InputConnection { 5678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final EditorInfo mOutAttrs; 5679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection mTarget; 568014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnectionWrapper(EditorInfo outAttrs) { 5682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOutAttrs = outAttrs; 5683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 568414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection getTarget() { 5686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) { 5687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget; 5690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 569114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean reportFullscreenMode(boolean enabled) { 5694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since it is 5695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the "real" one the IME is talking with. 5696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.reportFullscreenMode(enabled); 5697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performEditorAction(int editorAction) { 5701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The editor is off in its own window; we need to be 5702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the one that does this. 5703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (editorAction == EditorInfo.IME_ACTION_DONE) { 5704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette InputMethodManager imm = (InputMethodManager) 5705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (imm != null) { 5707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette imm.hideSoftInputFromWindow(getWindowToken(), 0); 570814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 571014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 571214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 571314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean sendKeyEvent(KeyEvent event) { 5716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since the filter 5717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // text view may not be shown in a window so has 5718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // no ViewAncestor to dispatch events with. 5719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.sendKeyEvent(event); 572014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 572114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextBeforeCursor(int n, int flags) { 5724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextBeforeCursor(n, flags); 5726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextAfterCursor(int n, int flags) { 5730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextAfterCursor(n, flags); 573214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getSelectedText(int flags) { 5736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getSelectedText(flags); 5738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5739539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public int getCursorCapsMode(int reqModes) { 5742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getCursorCapsMode(reqModes); 5744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().getExtractedText(request, flags); 5749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().deleteSurroundingText(beforeLength, afterLength); 5754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingText(CharSequence text, int newCursorPosition) { 5758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingText(text, newCursorPosition); 5759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingRegion(int start, int end) { 5763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingRegion(start, end); 5764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean finishComposingText() { 5768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget == null || mTarget.finishComposingText(); 5769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitText(CharSequence text, int newCursorPosition) { 5773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitText(text, newCursorPosition); 5774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCompletion(CompletionInfo text) { 5778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCompletion(text); 5779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCorrection(CorrectionInfo correctionInfo) { 5783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCorrection(correctionInfo); 5784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setSelection(int start, int end) { 5788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setSelection(start, end); 5789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performContextMenuAction(int id) { 5793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performContextMenuAction(id); 5794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean beginBatchEdit() { 5798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().beginBatchEdit(); 5799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean endBatchEdit() { 5803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().endBatchEdit(); 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean clearMetaKeyStates(int states) { 5808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().clearMetaKeyStates(states); 5809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performPrivateCommand(String action, Bundle data) { 5813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performPrivateCommand(action, data); 581443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 58150023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa 58160023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa @Override 5817d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa public boolean requestCursorUpdates(int cursorUpdateMode) { 5818d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa return getTarget().requestCursorUpdates(cursorUpdateMode); 58190023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa } 582043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 582143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For filtering we proxy an input connection to an internal text editor, 5824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * and this allows the proxying to happen. 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean checkInputConnectionProxy(View view) { 5828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view == mTextFilter; 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Creates the window for the text filter and populates it with an EditText field; 5833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param animateEntrance true if the window should appear with an animation 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createTextFilter(boolean animateEntrance) { 5837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup == null) { 5838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PopupWindow p = new PopupWindow(getContext()); 5839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setFocusable(false); 5840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setTouchable(false); 5841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setContentView(getTextFilterInput()); 5843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setWidth(LayoutParams.WRAP_CONTENT); 5844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setHeight(LayoutParams.WRAP_CONTENT); 5845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setBackgroundDrawable(null); 5846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup = p; 5847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getViewTreeObserver().addOnGlobalLayoutListener(this); 5848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mGlobalLayoutListenerAddedFilter = true; 5849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (animateEntrance) { 5851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 5852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private EditText getTextFilterInput() { 5858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTextFilter == null) { 5859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter = (EditText) layoutInflater.inflate( 5861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette com.android.internal.R.layout.typing_filter, null); 5862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // For some reason setting this as the "real" input type changes 5863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the text view in some way that it doesn't work, and I don't 5864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // want to figure out why this is. 5865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.addTextChangedListener(this); 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTextFilter; 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clear the text filter. 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void clearTextFilter() { 5877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered) { 5878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getTextFilterInput().setText(""); 5879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns if the ListView currently has a text filter. 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasTextFilter() { 5890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 5891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onGlobalLayout() { 5895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isShown()) { 5896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the popup if we are filtered 5897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 5898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Hide the popup when we are no longer visible 5902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void beforeTextChanged(CharSequence s, int start, int count, int after) { 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Performs 5919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the actual filtering as the text changes, and takes care of hiding and 5920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * showing the popup displaying the currently entered filter text. 5921b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5922b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onTextChanged(CharSequence s, int start, int before, int count) { 5924c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int length = s.length(); 5927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean showing = mPopup.isShowing(); 5928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!showing && length > 0) { 5929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the filter popup if necessary 5930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = true; 5932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (showing && length == 0) { 5933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove the filter popup if the user has cleared all text 5934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter instanceof Filterable) { 5938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Filter f = ((Filterable) mAdapter).getFilter(); 5939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Filter should not be null when we reach this part 5940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (f != null) { 5941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette f.filter(s, this); 5942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalStateException("You cannot call onTextChanged with a non " 5944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "filterable adapter"); 5945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 59461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5947c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5948b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 59490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void afterTextChanged(Editable s) { 5956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5957f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onFilterComplete(int count) { 5960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && count > 0) { 5961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette resurrectSelection(); 5963f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5965f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5971f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 5974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new LayoutParams(p); 5975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5976f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams generateLayoutParams(AttributeSet attrs) { 5979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(getContext(), attrs); 5980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5981f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 5984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return p instanceof AbsListView.LayoutParams; 5985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 60185be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 60195be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 60205be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 60215be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 60225be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 602680756e38882720860db52f1fcc21fa1505a02abfTor Norbye public void setCacheColorHint(@ColorInt int color) { 602752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 602852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 602952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 603052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 603152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 603252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 603352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 603452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 60409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 60429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60437b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 604480756e38882720860db52f1fcc21fa1505a02abfTor Norbye @ColorInt 60459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 60469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 60479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views (excluding headers and footers) held by this AbsListView into the supplied 6051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * List. This includes views displayed on the screen as well as views stored in AbsListView's 6052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * internal view recycler. 6053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param views A list into which to put the reclaimed views 6055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void reclaimViews(List<View> views) { 6057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childCount = getChildCount(); 6058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette RecyclerListener listener = mRecycler.mRecyclerListener; 6059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Reclaim views on screen 6061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't reclaim header or footer views, or views that should be ignored 6065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 6066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.add(child); 6067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.setAccessibilityDelegate(null); 6068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (listener != null) { 6069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pretend they went through the scrap heap 6070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette listener.onMovedToScrapHeap(child); 6071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.reclaimScrapViews(views); 6075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeAllViewsInLayout(); 6076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void finishGlows() { 6079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mEdgeGlowTop != null) { 6080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowTop.finish(); 6081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowBottom.finish(); 6082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * through the specified intent. 6088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsAdapter(Intent intent) { 6091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 6093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 6095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcOld = new Intent.FilterComparison( 6096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.getRemoteViewsServiceIntent()); 6097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (fcNew.equals(fcOld)) { 6098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 6102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, create a new RemoteViewsAdapter for binding 6103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter.isDataReady()) { 6105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 6106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 6111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param handler The OnClickHandler to use when inflating RemoteViews. 6113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 6119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 6126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * connected yet. 6127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void deferNotifyDataSetChanged() { 6130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = true; 6131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter connects to the RemoteViewsService. 6135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onRemoteAdapterConnected() { 6138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != mAdapter) { 6139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 6140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDeferNotifyDataSetChanged) { 6141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.notifyDataSetChanged(); 6142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 6143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mRemoteAdapter != null) { 6146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.superNotifyDataSetChanged(); 6147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter disconnects from the RemoteViewsService. 6154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onRemoteAdapterDisconnected() { 6157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the remote adapter disconnects, we keep it around 6158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // since the currently displayed items are still cached. 6159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Further, we want the service to eventually reconnect 6160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // when necessary, as triggered by this view requesting 6161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // items from the Adapter. 6162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * being displayed by the AbsListView. 6167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setVisibleRangeHint(int start, int end) { 6169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setVisibleRangeHint(start, end); 6171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the recycler listener to be notified whenever a View is set aside in 6176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the recycler for later reuse. This listener can be used to free resources 6177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to the View. 6178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param listener The recycler listener to be notified of views set aside 6180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * in the recycler. 6181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRecyclerListener(RecyclerListener listener) { 6186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.mRecyclerListener = listener; 6187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onChanged() { 6192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onChanged(); 6193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onInvalidated() { 6200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onInvalidated(); 6201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * selects and deselects list items. 6212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public interface MultiChoiceModeListener extends ActionMode.Callback { 6214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called when an item is checked or unchecked during selection mode. 6216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param mode The {@link ActionMode} providing the selection mode 6218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Adapter position of the item that was checked or unchecked 6219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param id Adapter ID of the item that was checked or unchecked 6220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param checked <code>true</code> if the item is now checked, <code>false</code> 6221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * if the item is now unchecked. 6222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked); 6225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private MultiChoiceModeListener mWrapped; 6229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setWrapped(MultiChoiceModeListener wrapped) { 6231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped = wrapped; 6232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasWrappedCallback() { 6235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped != null; 6236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mWrapped.onCreateActionMode(mode, menu)) { 6241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Initialize checked graphic state? 6242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(false); 6243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onPrepareActionMode(mode, menu); 6251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onActionItemClicked(mode, item); 6256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onDestroyActionMode(ActionMode mode) { 6260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onDestroyActionMode(mode); 6261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode = null; 6262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ending selection mode means deselecting everything. 6264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearChoices(); 6265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 6267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 6268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(true); 6271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked) { 6276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If there are no items selected we no longer need the selection mode. 6279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getCheckedItemCount() == 0) { 6280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mode.finish(); 6281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * AbsListView extends LayoutParams to provide a place to hold the view type. 6287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static class LayoutParams extends ViewGroup.LayoutParams { 6289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * View type for this view, as returned by 6291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link android.widget.Adapter#getItemViewType(int) } 6292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list", mapping = { 6294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 6295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 6296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }) 6297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewType; 6298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When this boolean is set, the view has been added to the AbsListView 6301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at least once. It is used to know whether headers/footers have already 6302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * been added to the list view and whether they should be treated as 6303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * recycled views or not. 6304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean recycledHeaderFooter; 6307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When an AbsListView is measured with an AT_MOST measure spec, it needs 6310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to obtain children views to measure itself. When doing so, the children 6311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * are not attached to the window, but put in the recycler which assumes 6312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * they've been attached before. Setting this flag will force the reused 6313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view to be attached to the window rather than just attached to the 6314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * parent. 6315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean forceAdd; 6318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position the view was removed from when pulled out of the 6321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrap heap. 6322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrappedFromPosition; 6325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The ID the view represents 6328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long itemId = -1; 6330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(Context c, AttributeSet attrs) { 6332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(c, attrs); 6333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h) { 6336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h, int viewType) { 6340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette this.viewType = viewType; 6342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(ViewGroup.LayoutParams source) { 6345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(source); 6346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 634794a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy 634894a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy /** @hide */ 634994a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy @Override 635094a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy protected void encodeProperties(@NonNull ViewHierarchyEncoder encoder) { 635194a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy super.encodeProperties(encoder); 635294a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy 635394a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:viewType", viewType); 635494a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:recycledHeaderFooter", recycledHeaderFooter); 635594a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:forceAdd", forceAdd); 635694a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy } 6357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A RecyclerListener is used to receive a notification whenever a View is placed 6361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * inside the RecycleBin's scrap heap. This listener is used to free resources 6362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to Views placed in the RecycleBin. 6363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static interface RecyclerListener { 6368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Indicates that the specified View was moved into the recycler's scrap heap. 6370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The view is not displayed on screen any more and any expensive resource 6371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated with the view should be discarded. 6372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param view 6374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void onMovedToScrapHeap(View view); 6376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 6380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 6381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * start of a layout. By construction, they are displaying current information. At the end of 6382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 6383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * could potentially be used by the adapter to avoid allocating views unnecessarily. 6384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class RecycleBin { 6389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private RecyclerListener mRecyclerListener; 6390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position of the first view stored in mActiveViews. 6393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mFirstActivePosition; 6395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views that were on screen at the start of layout. This array is populated at the start of 6398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 6399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views in mActiveViews represent a contiguous range of Views, with position of the first 6400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view store in mFirstActivePosition. 6401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private View[] mActiveViews = new View[0]; 6403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Unsorted views that can be used by the adapter as a convert view. 6406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View>[] mScrapViews; 6408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mViewTypeCount; 6410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mCurrentScrap; 6412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mSkippedScrap; 6414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private SparseArray<View> mTransientStateViews; 6416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private LongSparseArray<View> mTransientStateViewsById; 6417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setViewTypeCount(int viewTypeCount) { 6419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTypeCount < 1) { 6420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 6421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection unchecked 6423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 6424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; i++) { 6425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews[i] = new ArrayList<View>(); 6426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mViewTypeCount = viewTypeCount; 6428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap = scrapViews[0]; 6429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews = scrapViews; 6430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void markChildrenDirty() { 6433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).forceLayout(); 6438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).forceLayout(); 6446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViews.size(); 6451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.valueAt(i).forceLayout(); 6453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById != null) { 6456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViewsById.size(); 6457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.valueAt(i).forceLayout(); 6459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean shouldRecycleViewType(int viewType) { 6464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return viewType >= 0; 6465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clears the scrap heap. 6469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clear() { 6471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 64733e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 64783e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearTransientStateViews(); 6483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fill ActiveViews with all of the children of the AbsListView. 6487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param childCount The minimum number of views mActiveViews should hold 6489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param firstActivePosition The position of the first view that will be stored in 6490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews 6491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void fillActiveViews(int childCount, int firstActivePosition) { 6493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mActiveViews.length < childCount) { 6494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mActiveViews = new View[childCount]; 6495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstActivePosition = firstActivePosition; 6497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection MismatchedReadAndWriteOfArray 6499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't put header or footer views into the scrap heap 6504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 6506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // However, we will NOT place them into scrap views. 6507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = child; 6508b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Remember the position so that setupChild() doesn't reset state. 6509b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette lp.scrappedFromPosition = firstActivePosition + i; 6510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Get the view corresponding to the specified position. The view will be removed from 6516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews if it is found. 6517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The position to look up in mActiveViews 6519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The view if it is found, null otherwise 6520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getActiveView(int position) { 6522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = position - mFirstActivePosition; 6523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >=0 && index < activeViews.length) { 6525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View match = activeViews[index]; 6526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[index] = null; 6527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return match; 6528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getTransientStateView(int position) { 6533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(position); 6535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViewsById.get(id); 6536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.remove(id); 6537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = mTransientStateViews.indexOfKey(position); 6541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0) { 6542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViews.valueAt(index); 6543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.removeAt(index); 6544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Dumps and fully detaches any currently saved views with transient 6552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * state. 6553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clearTransientStateViews() { 6555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> viewsByPos = mTransientStateViews; 6556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsByPos != null) { 6557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsByPos.size(); 6558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsByPos.valueAt(i), false); 6560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsByPos.clear(); 6562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> viewsById = mTransientStateViewsById; 6565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsById != null) { 6566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsById.size(); 6567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsById.valueAt(i), false); 6569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsById.clear(); 6571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A view from the ScrapViews collection. These are unordered. 6576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getScrapView(int position) { 6578f85e673980bea51941488eeeeba2d30832384ae2Yigit Boyar final int whichScrap = mAdapter.getItemViewType(position); 6579f85e673980bea51941488eeeeba2d30832384ae2Yigit Boyar if (whichScrap < 0) { 6580f85e673980bea51941488eeeeba2d30832384ae2Yigit Boyar return null; 6581f85e673980bea51941488eeeeba2d30832384ae2Yigit Boyar } 6582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mCurrentScrap, position); 6584f85e673980bea51941488eeeeba2d30832384ae2Yigit Boyar } else if (whichScrap < mScrapViews.length) { 6585f85e673980bea51941488eeeeba2d30832384ae2Yigit Boyar return retrieveFromScrap(mScrapViews[whichScrap], position); 6586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts a view into the list of scrap views. 6592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * <p> 6593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * with transient state will be preserved for later retrieval. 6595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scrap The view to add 6597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The view's position within its parent 6598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void addScrapView(View scrap, int position) { 6600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 6601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp == null) { 6602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = position; 6606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove but don't scrap header or footer views, or views that 6608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // should otherwise not be recycled. 6609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewType = lp.viewType; 6610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!shouldRecycleViewType(viewType)) { 6611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.dispatchStartTemporaryDetach(); 6615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The the accessibility state of the view may change while temporary 6617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // detached and we do not allow detached views to fire accessibility 6618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // events. So we are announcing that the subtree changed giving a chance 6619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to clients holding on to a view in this subtree to refresh it. 6620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette notifyViewAccessibilityStateChangedIfNeeded( 6621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scrap views that have transient state. 6624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean scrapHasTransientState = scrap.hasTransientState(); 6625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrapHasTransientState) { 6626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the adapter has stable IDs, we can reuse the view for 6628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the same data. 6629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the data hasn't changed, we can reuse the views at 6635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // their old positions. 6636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(position, scrap); 6640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, we'll have to remove the view and start over. 6642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap = new ArrayList<View>(); 6644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.add(scrap); 6646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap.add(scrap); 6650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews[viewType].add(scrap); 6652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRecyclerListener != null) { 6655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Finish the removal of any views that skipped the scrap heap. 6662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void removeSkippedScrap() { 6664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mSkippedScrap.size(); 6668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(mSkippedScrap.get(i), false); 6670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.clear(); 6672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views remaining in mActiveViews to mScrapViews. 6676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void scrapActiveViews() { 6678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean hasListener = mRecyclerListener != null; 6680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean multipleScraps = mViewTypeCount > 1; 6681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View> scrapViews = mCurrentScrap; 6683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = count - 1; i >= 0; i--) { 6685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp 6688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette = (AbsListView.LayoutParams) victim.getLayoutParams(); 6689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int whichScrap = lp.viewType; 6690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = null; 6692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim.hasTransientState()) { 6694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store views with transient state for later use. 6695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(mFirstActivePosition + i); 6702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(id, victim); 6703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(mFirstActivePosition + i, victim); 6708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The data has changed, we can't keep this view. 6710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!shouldRecycleViewType(whichScrap)) { 6713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Discard non-recyclable views except headers/footers. 6714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store everything else on the appropriate scrap heap. 6719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (multipleScraps) { 6720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews = mScrapViews[whichScrap]; 6721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = mFirstActivePosition + i; 6725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews.add(victim); 67269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (hasListener) { 6728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(victim); 6729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette pruneScrapViews(); 6735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 6737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes sure that the size of mScrapViews does not exceed the size of 6739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews, which can happen if an adapter does not recycle its 6740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * views. Removes cached transient state views that no longer have 6741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * transient state. 6742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void pruneScrapViews() { 6744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int maxViews = mActiveViews.length; 6745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int size = scrapPile.size(); 6750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extras = size - maxViews; 6751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette size--; 6752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < extras; j++) { 6753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(scrapPile.remove(size--), false); 6754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6756499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> transViewsByPos = mTransientStateViews; 6758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsByPos != null) { 6759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsByPos.size(); i++) { 6760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsByPos.valueAt(i); 6761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsByPos.removeAt(i); 6764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6768a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> transViewsById = mTransientStateViewsById; 6770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsById != null) { 6771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsById.size(); i++) { 6772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsById.valueAt(i); 6773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsById.removeAt(i); 6776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 6782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts all views in the scrap heap into the supplied list. 6784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void reclaimScrapViews(List<View> views) { 6786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(mCurrentScrap); 6788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(scrapPile); 6794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 6796499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6797499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Updates the cache color hint of all known views. 6800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param color The new cache color hint. 6802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setCacheColorHint(int color) { 6804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).setDrawingCacheBackgroundColor(color); 6809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).setDrawingCacheBackgroundColor(color); 6817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Just in case this is called during a layout pass 6821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; ++i) { 6824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.setDrawingCacheBackgroundColor(color); 6827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6830499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 68313e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 68323e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int size = scrapViews.size(); 68333e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (size > 0) { 68343e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette // See if we still have a view for this position or ID. 68353e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int i = 0; i < size; i++) { 68363e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View view = scrapViews.get(i); 68373e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final AbsListView.LayoutParams params = 68383e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette (AbsListView.LayoutParams) view.getLayoutParams(); 68393e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 68403e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (mAdapterHasStableIds) { 68413e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final long id = mAdapter.getItemId(position); 68423e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (id == params.itemId) { 68433e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrapViews.remove(i); 68443e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68453e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else if (params.scrappedFromPosition == position) { 68463e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(i); 68473e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 68483e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 68493e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 6850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68513e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(size - 1); 68523e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 68533e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 68543e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else { 68553e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return null; 6856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68573e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68583e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 68593e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearScrap(final ArrayList<View> scrap) { 68603e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int scrapCount = scrap.size(); 68613e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int j = 0; j < scrapCount; j++) { 68623e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 68633e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68643e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68653e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 68663e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearAccessibilityFromScrap(View view) { 6867632af849240f54f91b2b4fde77d3a51c4d045f74Alan Viverette view.clearAccessibilityFocus(); 68683e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.setAccessibilityDelegate(null); 68693e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68703e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 68713e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void removeDetachedView(View child, boolean animate) { 68723e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette child.setAccessibilityDelegate(null); 68733e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette AbsListView.this.removeDetachedView(child, animate); 6874b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6875b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6876b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6877b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 6878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of the view for the specified position. 68799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 6881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return view height in pixels 68829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeightForPosition(int position) { 6884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstVisiblePosition = getFirstVisiblePosition(); 6885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = position - firstVisiblePosition; 6887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0 && index < childCount) { 6888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is on-screen, use existing view. 6889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = getChildAt(index); 6890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view.getHeight(); 6891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is off-screen, obtain & recycle view. 6893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = obtainView(position, mIsScrap); 6894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette view.measure(mWidthMeasureSpec, MeasureSpec.UNSPECIFIED); 6895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = view.getMeasuredHeight(); 6896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(view, position); 6897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return height; 6898b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6899b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6900b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 69019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the selected item and positions the selection y pixels from the top edge 6903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the ListView. (If in touch mode, the item will not be selected but it will 6904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * still be positioned appropriately.) 6905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Index (starting at 0) of the data item to be selected. 6907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y The distance from the top edge of the ListView (plus padding) that the 6908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * item will be positioned. 6909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setSelectionFromTop(int position, int y) { 6911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter == null) { 6912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6913a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6914a798170f2abe198f806b12dd904830bc25257525Adam Powell 6915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 6916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = lookForSelectablePosition(position, true); 6917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(position); 6919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = position; 6922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 6926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = mListPadding.top + y; 6927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 6929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = position; 6930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncRowId = mAdapter.getItemId(position); 6931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 6934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 6935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 694094a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy /** @hide */ 694194a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy @Override 694294a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy protected void encodeProperties(@NonNull ViewHierarchyEncoder encoder) { 694394a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy super.encodeProperties(encoder); 694494a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy 694594a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("drawing:cacheColorHint", getCacheColorHint()); 694694a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:fastScrollEnabled", isFastScrollEnabled()); 694794a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:scrollingCacheEnabled", isScrollingCacheEnabled()); 694894a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:smoothScrollbarEnabled", isSmoothScrollbarEnabled()); 694994a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:stackFromBottom", isStackFromBottom()); 695094a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addProperty("list:textFilterEnabled", isTextFilterEnabled()); 695194a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy 695294a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy View selectedView = getSelectedView(); 695394a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy if (selectedView != null) { 695494a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy encoder.addPropertyKey("selectedView"); 695594a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy selectedView.encode(encoder); 695694a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy } 695794a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy } 695894a6d15ede149189bba9e5f474ed853c98230e75Siva Velusamy 6959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract positon scroller used to handle smooth scrolling. 69619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static abstract class AbsPositionScroller { 6963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position); 6964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position, int boundPosition); 6965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset); 6966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset, int duration); 6967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void stop(); 6968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6969079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Default position scroller that simulates a fling. 6972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class PositionScroller extends AbsPositionScroller implements Runnable { 6974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int SCROLL_DURATION = 200; 6975539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_POS = 1; 6977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_POS = 2; 6978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_BOUND = 3; 6979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_BOUND = 4; 6980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_OFFSET = 5; 69819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mMode; 6983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mTargetPos; 6984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mBoundPos; 6985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mLastSeenPos; 6986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mScrollDuration; 6987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final int mExtraScroll; 69889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mOffsetFromTop; 69909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PositionScroller() { 6992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 69939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position) { 6997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 69989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 7000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 7001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 7002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 7003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 7004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 7006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 7011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 7012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 70179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 7019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 7020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 7021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - clampedPosition + 1; 7022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 7023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 7024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = clampedPosition - lastPos + 1; 7025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 7026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 7028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 7032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 7033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 7035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 7037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 7038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 70399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7042539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position, final int boundPosition) { 7045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 7046539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosition == INVALID_POSITION) { 7048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 7049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 70509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 7052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 7053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 7054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 7055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 7056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position, boundPosition); 7057f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 7058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 7059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7060f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 7061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 7064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 7065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7066539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 7072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 7073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 7074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromLast = lastPos - boundPosition; 7075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromLast < 1) { 7076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 7077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7078728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 70790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = firstPos - clampedPosition + 1; 7081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromLast - 1; 7082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 7083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 7084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_BOUND; 7085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 7087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 7088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 7090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromFirst = boundPosition - firstPos; 7091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromFirst < 1) { 7092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 7093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = clampedPosition - lastPos + 1; 7097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromFirst - 1; 7098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 7099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 7100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_BOUND; 7101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 7103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 71049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 7107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 71089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7109595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 7111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 7112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 71149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 7116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = boundPosition; 7117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 71189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 71209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 7124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, offset, SCROLL_DURATION); 71259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(final int position, int offset, final int duration) { 7129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 7130539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 7132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 7133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int postOffset = offset; 7134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 7135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 7136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, postOffset, duration); 7137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 7139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7140539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7141595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 7144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 7145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7146728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 7147539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offset += getPaddingTop(); 7149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 7151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOffsetFromTop = offset; 7152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 7153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 7154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_OFFSET; 7155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 7160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTargetPos < firstPos) { 7161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - mTargetPos; 7162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTargetPos > lastPos) { 7163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = mTargetPos - lastPos; 71649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 7167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(targetTop - offset, duration, true); 7168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 71699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = screenTravelCount < 1 ? 7174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette duration : (int) (duration / screenTravelCount); 7175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 7176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 71789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 71809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scroll such that targetPos is in the visible padded region without scrolling 7182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * boundPos out of view. Assumes targetPos is onscreen. 71839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void scrollToVisible(int targetPos, int boundPos, int duration) { 7185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedTop = mListPadding.top; 7189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedBottom = getHeight() - mListPadding.bottom; 7190539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetPos < firstPos || targetPos > lastPos) { 7192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 7193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette " not visible [" + firstPos + ", " + lastPos + "]"); 7194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos < firstPos || boundPos > lastPos) { 7196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // boundPos doesn't matter, it's already offscreen. 7197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boundPos = INVALID_POSITION; 7198d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 7199d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 7200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View targetChild = getChildAt(targetPos - firstPos); 7201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = targetChild.getTop(); 7202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetBottom = targetChild.getBottom(); 7203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrollBy = 0; 7204d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 7205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetBottom > paddedBottom) { 7206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetBottom - paddedBottom; 7207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetTop < paddedTop) { 7209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetTop - paddedTop; 7210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 72119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy == 0) { 7213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 72151e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 7216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos >= 0) { 7217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View boundChild = getChildAt(boundPos - firstPos); 7218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTop = boundChild.getTop(); 7219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundBottom = boundChild.getBottom(); 7220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absScroll = Math.abs(scrollBy); 72219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 7223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the bottom of the screen. 7224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.max(0, boundBottom - paddedBottom); 7225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 7226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the top of the screen. 7227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.min(0, boundTop - paddedTop); 7228d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 72299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, duration); 72329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 72339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void stop() { 7236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(this); 7237539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7238539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 7241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listHeight = getHeight(); 7242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 72439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mMode) { 7245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_POS: { 7246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 1; 7247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 72489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 72529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7258595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = lastPos < mItemCount - 1 ? 7264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 72659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 7267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, mScrollDuration, true); 72689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos < mTargetPos) { 7271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 72729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 72749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 72759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_BOUND: { 7277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewIndex = 1; 7278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 72799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mBoundPos || childCount <= nextViewIndex 7281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette || firstPos + childCount >= mItemCount) { 7282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 72839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextPos = firstPos + nextViewIndex; 7285bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 7286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos == mLastSeenPos) { 7287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View nextView = getChildAt(nextViewIndex); 7293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewHeight = nextView.getHeight(); 7294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewTop = nextView.getTop(); 7295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 7296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos < mBoundPos) { 7297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 7298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration, true); 7299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = nextPos; 7301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextViewTop > extraScroll) { 7305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 7306bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7307bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7309bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7310595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_POS: { 7312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mLastSeenPos) { 7313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7316728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 73179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View firstView = getChildAt(0); 7319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstView == null) { 7320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 73219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstViewTop = firstView.getTop(); 7323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = firstPos > 0 ? 7324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 732552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 7326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 7327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos > mTargetPos) { 7331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 733252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 733452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_BOUND: { 7337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 2; 7338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 734052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 7342079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 7343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7347079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7348441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 7354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos > mBoundPos) { 7356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 7357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = listHeight - extraScroll; 7360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewBottom = lastViewTop + lastViewHeight; 7361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom > lastViewBottom) { 7362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 7363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7366441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7367441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_OFFSET: { 7369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLastSeenPos == firstPos) { 7370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7374441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7376441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int position = mTargetPos; 7379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7380441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount = 0; 7382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - position + 1; 7384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = position - lastPos; 7386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7387441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7390441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 7392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (-getHeight() * modifier); 7394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (getHeight() * modifier); 7399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(position - firstPos).getTop(); 7405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = targetTop - mOffsetFromTop; 7406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * 7407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ((float) Math.abs(distance) / getHeight())); 7408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7411441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7412441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 7414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7415441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7416441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7417441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 74189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7419