AbsListView.java revision e0e4217330fc3fa86046c284696df3b2d9785632
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 20499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 26c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 315fade8c69aef621312232ef0647502d7a63990b9Romain Guyimport android.os.Trace; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 33f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.text.InputType; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 60c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 61a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 6276769ae02e713f50816ee67ff618b748d95050a8Alan Viveretteimport android.view.accessibility.AccessibilityNodeInfo.CollectionInfo; 630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 66f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 67f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 68b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 69f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 70f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 71b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 73a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 75335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 76335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 81d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 82d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 83d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 94f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 98499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 99499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 102539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 103539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 110de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 119de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 22939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 23039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 23139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 23239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 26014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 26114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 26214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 263f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 265f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 266f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 282499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 287539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2922148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 307079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 308079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 309079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 310079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3670211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller mPositionScroller; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 45039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 45139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 45239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 50814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 50914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 51014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 51114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 51214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5291cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 545d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private CheckForTap mPendingCheckForTap; 5460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 558d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 559d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 560d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 561d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 562d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private FastScroller mFastScroll; 5888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 5898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 5908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Temporary holder for fast scroller style until a FastScroller object 5918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * is created. 5928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 5938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private int mFastScrollStyle; 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 595d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 597d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 6011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 6026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 604161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 6054296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 6064296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 60721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 6084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 60921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61196d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollOffset = new int[2]; 61296d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollConsumed = new int[2]; 61396d62aff0f97557bc15de98e145d9345288d060cAdam Powell 61424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 61524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 61624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6296dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 64689935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 65189935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 673da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 674da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 675da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 676da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 677da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 67807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 67907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 68007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 681c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 682c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 683c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 684c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 685c1d7e770e123adfa992d013fa294693d077cbc78alanv 6864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6874e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6884e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 689da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 690ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 691ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 692ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 693ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 694ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6960b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6970b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6980b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6990b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 700e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 701e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 702e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 703e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 704e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 705e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 706e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 707e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 708462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette * Whether the view is in the process of detaching from its window. 709462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette */ 710462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette private boolean mIsDetaching; 711462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 712462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette /** 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 74343943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee * @param scrollState The current scroll state. One of 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 761e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 762e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 763e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 764e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 765e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 766e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 767e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 768e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 769e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 771e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 772e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 773e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 774e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 775e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 776e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 78239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 785287c0361877057e50190cc0d7224e5bb2a7c4955Adam Powell initializeScrollbarsInternal(a); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 793617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 794617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 795617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 796617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 797617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 798617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 80139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 80239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 803617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 804617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette attrs, com.android.internal.R.styleable.AbsListView, defStyleAttr, defStyleRes); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8338636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette int fastScrollStyle = a.getResourceId(R.styleable.AbsListView_fastScrollStyle, 0); 8348636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette setFastScrollStyle(fastScrollStyle); 8358636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 84020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 84120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 846d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 847d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 848df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 849d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 850d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 851d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 852d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 853d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8544296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8554296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8564296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8574296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 861d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 862d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 86989935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 87089935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 879d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 885539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 886539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 88814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 95982ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 96082ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 96182ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 98314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1022a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1023a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1024a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1025a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1026a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1027a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 103614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 106814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1087bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 109129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10955bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10965bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10985bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 109914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 11045bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 11115bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1112bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 11165bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11175bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1118f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 112214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 112829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 113229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 113329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1136bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1137bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1138bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 114429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 114529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 114629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 114729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 114829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 114929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 115029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 115129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 115229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 115329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 115429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 115529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 115629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 115729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 115829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 115929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 116029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 116129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 116429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 116529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1191f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1194f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12252bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12262bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12284ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12294ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 123386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 123486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 123686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 123786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 123886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 123986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 124086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 124186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 124286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 124586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 124739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 124839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 124939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 125039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 125139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 125239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 125439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 125539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 125639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 125739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 125839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 125939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 126039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1261447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 126239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1263447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 126439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 12658636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12668636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(enabled); 126739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 12688636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll = new FastScroller(this, mFastScrollStyle); 12698636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(true); 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 127126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1272b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 127326bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 12748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.updateLayout(); 12768636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 12798636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 12808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Specifies the style of the fast scroller decorations. 12818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * 12828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @param styleResId style resource containing fast scroller properties 12838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @see android.R.styleable#FastScroll 12848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 12858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette public void setFastScrollStyle(int styleResId) { 12868636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 12878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScrollStyle = styleResId; 12888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } else { 12898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setStyle(styleResId); 129026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 129486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 129586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 129620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 129786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 129886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 129986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 130086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 130120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 130286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 130386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 130420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 130520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 130620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 130739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 130839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 130939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 131039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 131139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 131239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 131439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 131539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 131639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 131739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 131839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 131939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 132039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 132139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 132239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 132439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 13298636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13308636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setAlwaysShow(alwaysShow); 133120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 133539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 133639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 133739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 133839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 133920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 134286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 134320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 134486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 134520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 134620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 134720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 13488636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1349b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1350b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13518636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled() && mFastScroll.isAlwaysShowEnabled(); 1352b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 135320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 135520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 135620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 13578636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.isEnabled()) { 13588636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return Math.max(super.getVerticalScrollbarWidth(), mFastScroll.getWidth()); 135920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 136120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 136320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 136486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 136586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13718636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1372b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1373b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled(); 1375b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 137820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 137920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 138020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 13818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(position); 138320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 138520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 138626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 138726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 138826bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 13898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollBarStyle(style); 139126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 139326bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13950ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1400b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 14140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14518636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 14528636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onScroll(mFirstPosition, getChildCount(), mItemCount); 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14570a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1460a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1466d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1467d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1468d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1469d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14709c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14714e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1472d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1473d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14744e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14754e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14764e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14774e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14784e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14798a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14808a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14818a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14828a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14838a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14848a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14858a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14868a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14878a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14888a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1489fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1490fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1491fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 149280943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1493fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1494fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1495fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 149680943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1497fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1498a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1499a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1500a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 150176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette int getSelectionModeForAccessibility() { 150276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette final int choiceMode = getChoiceMode(); 150376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette switch (choiceMode) { 150476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_NONE: 150576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 150676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_SINGLE: 150776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_SINGLE; 150876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE: 150976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE_MODAL: 151076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_MULTIPLE; 151176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette default: 151276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 151376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 151576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette 1516a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1517a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 151848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 151948d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 152048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1521a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1522a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1523fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1524a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1526a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1528a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1529a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1530fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1531a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1532a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1533a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1534a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1535a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1536a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 153748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15388a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15398a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15405b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 15415b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 15425b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 15435b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 15445b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 15455b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15465b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 15475b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15485b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15495b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15505b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15515b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15525b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15535b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15545b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15555b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16206bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16328eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable( 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1676a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16772614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1678f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 167914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1699a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 17002614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1701f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 170243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 170343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 170414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 170543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 170643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 170743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 170843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 170914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1710f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1722a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17232614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 172543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 172643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 172743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 172843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 172943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 173014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1764f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1774e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1775e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1776e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1777e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1778e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1779e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1780e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1781e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1782e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1783e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1784e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1785e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1786e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1787e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1788e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 178999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18007becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 18017becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 18027becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 18037becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 18047becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 18057becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 18067becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 18077becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 18087becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 18097becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 181299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 181399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 181499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 181599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 181699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 181799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1836a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1837a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18389a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18399a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18409a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18419a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 184214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18439a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18449a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18459a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18469a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18479a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18489a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18492614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1851335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1852335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1853335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1854335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1869e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1878079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1880e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18972614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18982614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1899a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1900a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1901a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1902a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1903a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1908d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1909d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 19150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 195531986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1956b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1957b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1958b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1959b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1960b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1961b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1980161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1982e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1988079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 20330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20968fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2112da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2113da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2114da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2115da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2116ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2117da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2118da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2119ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2120da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2121da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2124d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2125d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2126d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2127d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 2131d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2133d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21344b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette final int childCount = getChildCount(); 2135f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2136f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2137f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2138f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2139f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2140f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21410ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 2146732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette 2147732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette // TODO: Move somewhere sane. This doesn't belong in onLayout(). 2148732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette if (mFastScroll != null) { 2149732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette mFastScroll.onItemCountChanged(getChildCount(), mItemCount); 2150732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2160d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2161d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2162d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2163d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2164d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2165d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2166d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2167d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2173d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2174d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2175d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21795d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21803e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @param focusedView view that holds accessibility focus 21813e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @return direct child that contains accessibility focus, or null if no 21825d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21835d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21843e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette View getAccessibilityFocusedChild(View focusedView) { 21855d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21865d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 21875d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 21885d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 21895d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21905d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21915d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 21925d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21935d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21945d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21955d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 21965d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21975d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 229721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 229821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 230221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 23035fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 23045fade8c69aef621312232ef0647502d7a63990b9Romain Guy 230521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2307595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Check whether we have a transient state view. Attempt to re-bind the 2308595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // data and discard the view if we fail. 2309595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View transientView = mRecycler.getTransientStateView(position); 2310595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transientView != null) { 2311ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final LayoutParams params = (LayoutParams) transientView.getLayoutParams(); 2312ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2313ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If the view type hasn't changed, attempt to re-bind the data. 2314ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (params.viewType == mAdapter.getItemViewType(position)) { 2315ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final View updatedView = mAdapter.getView(position, transientView, this); 2316ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2317ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If we failed to re-bind the data, scrap the obtained view. 2318ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (updatedView != transientView) { 2319e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(updatedView, position); 2320ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette mRecycler.addScrapView(updatedView, position); 2321ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette } 2322595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 2323595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 2324595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Scrap view implies temporary detachment. 2325595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette isScrap[0] = true; 2326595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette return transientView; 2327539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2328539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2329595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View scrapView = mRecycler.getScrapView(position); 2330595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View child = mAdapter.getView(position, scrapView, this); 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2333595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, return scrap to the heap. 2334079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 233521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2336a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 23371e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2338a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2340595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23414213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2342595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mCacheColorHint != 0) { 2343595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setDrawingCacheBackgroundColor(mCacheColorHint); 2344595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23454213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2346595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 2347595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2350e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(child, position); 2351aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2352c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2353c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2354c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2355c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2356b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2357b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2358b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2359c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2360c1d7e770e123adfa992d013fa294693d077cbc78alanv 23615fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23625fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2366e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette private void setItemViewLayoutParams(View child, int position) { 2367e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2368e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette LayoutParams lp; 2369e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (vlp == null) { 2370e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateDefaultLayoutParams(); 2371e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else if (!checkLayoutParams(vlp)) { 2372e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateLayoutParams(vlp); 2373e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else { 2374e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) vlp; 2375e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2376e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2377e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (mAdapterHasStableIds) { 2378e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.itemId = mAdapter.getItemId(position); 2379e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2380e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.viewType = mAdapter.getItemViewType(position); 2381e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette child.setLayoutParams(lp); 2382e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2383e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2384c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2385c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 238650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 238750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 238850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 238950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 239050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 239150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 239250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 239350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 239450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 239550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 239650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 239750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2398c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2399c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2400c1d7e770e123adfa992d013fa294693d077cbc78alanv 2401c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24025b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2403c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2404c1d7e770e123adfa992d013fa294693d077cbc78alanv 2405c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2406c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2407fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2408fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2409fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2410fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2411c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24129c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2413c1d7e770e123adfa992d013fa294693d077cbc78alanv 24149c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 24159c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2416c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2417c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2418c1d7e770e123adfa992d013fa294693d077cbc78alanv 24199c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 24209c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2421fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2422fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2423fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2424c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2425c1d7e770e123adfa992d013fa294693d077cbc78alanv 2426c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 24279c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 24289c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 24299c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 24309c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24319c3e0e68260fe50456996d75304b73054cbde94aalanv } 24329c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2433fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 24349c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 24359c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 24369c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24379c3e0e68260fe50456996d75304b73054cbde94aalanv } 24389c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2439fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2440fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2441c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2442c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2443fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2444fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2445fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2446c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2447c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2448fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2449c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2450c1d7e770e123adfa992d013fa294693d077cbc78alanv 2451fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2452c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2453c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2454c1d7e770e123adfa992d013fa294693d077cbc78alanv 24555b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24565b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24575b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24585b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24595b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24605b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24615b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24625b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24635b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24645b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24655b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24665b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24675b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24685b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24695b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24705b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24715b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24725b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 24775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 24785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 24795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 24805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 24815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 24845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 24855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 24865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24885b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 24895b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24905b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24915b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24925b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24935b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2494de399397947c5379c61a1003c017b96accbbf545Alan Viverette /** 2495d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette * Positions the selector in a way that mimics touch. 2496d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette */ 2497d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette void positionSelectorLikeTouch(int position, View sel, float x, float y) { 2498d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette positionSelectorLikeFocus(position, sel); 2499d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette 2500d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette if (mSelector != null && position != INVALID_POSITION) { 2501d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette mSelector.setHotspot(x, y); 2502d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette } 2503d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette } 2504d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette 2505d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette /** 25064d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette * Positions the selector in a way that mimics keyboard focus. 2507de399397947c5379c61a1003c017b96accbbf545Alan Viverette */ 2508de399397947c5379c61a1003c017b96accbbf545Alan Viverette void positionSelectorLikeFocus(int position, View sel) { 25094d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // If we're changing position, update the visibility since the selector 25104d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // is technically being detached from the previous selection. 25114d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final Drawable selector = mSelector; 25124d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final boolean manageState = selector != null && mSelectorPosition != position 25134d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette && position != INVALID_POSITION; 25144d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (manageState) { 25154d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setVisible(false, false); 25164d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette } 25174d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 2518de399397947c5379c61a1003c017b96accbbf545Alan Viverette positionSelector(position, sel); 2519de399397947c5379c61a1003c017b96accbbf545Alan Viverette 25204d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (manageState) { 2521de399397947c5379c61a1003c017b96accbbf545Alan Viverette final Rect bounds = mSelectorRect; 2522de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float x = bounds.exactCenterX(); 2523de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float y = bounds.exactCenterY(); 25244d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setVisible(getVisibility() == VISIBLE, false); 2525c80ad99a33ee49d0bac994c1749ff24d243c3862Alan Viverette selector.setHotspot(x, y); 2526de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2527de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2528de399397947c5379c61a1003c017b96accbbf545Alan Viverette 2529079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2530079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2531079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2532079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2533079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2536e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2537e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2538e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 25394d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 25404d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // Adjust for selection padding. 25414d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.left -= mSelectionLeftPadding; 25424d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.top -= mSelectionTopPadding; 25434d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.right += mSelectionRightPadding; 25444d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.bottom += mSelectionBottomPadding; 25454d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 25464d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // Update the selector drawable. 25474d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final Drawable selector = mSelector; 25484d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (selector != null) { 25494d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setBounds(selectorRect); 25504d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2555a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2556079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2557079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 259320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 259420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 259520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 259620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 259720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 259820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 259920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 260020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 260120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 260220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 260320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 260420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 260520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 260620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 260720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 260820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 260920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 261020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 261120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 261220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 261320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 261420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 261520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 261620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 261720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2623d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 26248636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 26258636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSizeChanged(w, h, oldw, oldh); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 265274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2656079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 26848eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable(resID)); 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2700079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2718df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2719df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2720df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2721df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2725079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2730ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2731ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2732ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2739df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2740df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2761079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2762079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2763079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2764079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2765079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2766079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2767079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2768079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2769079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2773079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2816e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2817e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2818e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2819e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2820e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2821e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28260e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 28270e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 28280e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 283182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 283282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 283382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 28346a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 28356a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 28366a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 28376a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 28386a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 283982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2846462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = true; 2847462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 28481f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 28491f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 28501f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 285121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 285221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 285321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28550e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 28560e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 28579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 28580e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 286082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2861bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 286282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 286382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 286482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28651cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28661cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 28671cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 28681cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 28691cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28701cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28711cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 28721cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 28731cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 28741cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2875d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2876d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2877d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2878d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2879d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2880d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 28814032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2882d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2883d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2884d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2885d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2886d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2887d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2888d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2889d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2890d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2891d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2892d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2893d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2894a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2895d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2896462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 2897462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = false; 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2908670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2909670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2910670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2911670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2912670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 29134032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 29144032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 29154032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 29180fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2922670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 293197566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29553a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 29563a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 29573a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 29588636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 29598636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(getVerticalScrollbarPosition()); 29603a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29613a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29623a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29781487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 29791487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 29801487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 29811487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 29821487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 29831487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29841487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 29851487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 29861487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29871487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 29881487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 29891487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29901487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 29911487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 29921487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29931487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29941487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 30020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 300829219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3021005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 3022005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 3023005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 3024005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 3025005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 30267890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 30277890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 30287890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 30297890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 30307890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 30317890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 30378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 30618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30848350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 3086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 3087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 30881e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 30891e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 3090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 30911e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 3092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 3093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 3094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3116fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 3117fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 3118fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 3119fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 3120fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 3121fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 3122fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 3123fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 3124fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 3125fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3126fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3127fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3128fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3129fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3130fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3155df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3156df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3157df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3158df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3159df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 316124d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3162dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3163dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3164dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3165df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3166dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3168dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 317045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 317145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 317245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 317345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3232d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private final class CheckForTap implements Runnable { 3233d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float x; 3234d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float y; 3235d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 32368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3247079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3248079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3249e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 3255d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette final Drawable d = mSelector.getCurrent(); 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32638390fab6f4c305e89e1eb32bbf82c74a55f79424Alan Viverette mSelector.setHotspot(x, y); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3283c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private boolean startScrollIfNeeded(int x, int y, MotionEvent vtev) { 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 328996d62aff0f97557bc15de98e145d9345288d060cAdam Powell if ((overscroll || distance > mTouchSlop) && 329096d62aff0f97557bc15de98e145d9345288d060cAdam Powell (getNestedScrollAxes() & SCROLL_AXIS_VERTICAL) == 0) { 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 330174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 330813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 330913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 331013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 331113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 3312c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded(x, y, vtev); 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private void scrollIfNeeded(int x, int y, MotionEvent vtev) { 332096d62aff0f97557bc15de98e145d9345288d060cAdam Powell int rawDeltaY = y - mMotionY; 332143943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollOffsetCorrection = 0; 332243943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollConsumedCorrection = 0; 332343943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee if (mLastY == Integer.MIN_VALUE) { 332443943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee rawDeltaY -= mMotionCorrection; 332543943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee } 3326e0e4217330fc3fa86046c284696df3b2d9785632Brian Attwell if (dispatchNestedPreScroll(0, mLastY != Integer.MIN_VALUE ? mLastY - y : -rawDeltaY, 3327e0e4217330fc3fa86046c284696df3b2d9785632Brian Attwell mScrollConsumed, mScrollOffset)) { 3328aab726c53e761752e506471408b28673387cd10fAdam Powell rawDeltaY += mScrollConsumed[1]; 3329fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell scrollOffsetCorrection = -mScrollOffset[1]; 3330fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell scrollConsumedCorrection = mScrollConsumed[1]; 333196d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (vtev != null) { 333296d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.offsetLocation(0, mScrollOffset[1]); 333396d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 333496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 333543943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee final int deltaY = rawDeltaY; 333643943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int incrementalDeltaY = 3337e2e19391d422b6abb6abccb0e412debdf4a67716Yorke Lee mLastY != Integer.MIN_VALUE ? y - mLastY + scrollConsumedCorrection : deltaY; 333896d62aff0f97557bc15de98e145d9345288d060cAdam Powell int lastYCorrection = 0; 333978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 334078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 334178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 334278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 334378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 334478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 334578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 334678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 334778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 334878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 334978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 335078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 335178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 335378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 335478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 335578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 335678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 335778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 335878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 335978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 336078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 336178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 336278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 336578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 336678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 336778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 336878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 336978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 337078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 337178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 337278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 337378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 337578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 337678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 337778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 337878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 337978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 338078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 338178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 338278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 338378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 338478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 338678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 338778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 338878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 338978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 339078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 339178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 339278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 339378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 339478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 339578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 339678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 339796d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (dispatchNestedScroll(0, overscroll - incrementalDeltaY, 0, overscroll, 339896d62aff0f97557bc15de98e145d9345288d060cAdam Powell mScrollOffset)) { 339996d62aff0f97557bc15de98e145d9345288d060cAdam Powell lastYCorrection -= mScrollOffset[1]; 340011d0069f9228400943e9932e3286babb2b5f4135Adam Powell if (vtev != null) { 340111d0069f9228400943e9932e3286babb2b5f4135Adam Powell vtev.offsetLocation(0, mScrollOffset[1]); 340211d0069f9228400943e9932e3286babb2b5f4135Adam Powell } 340396d62aff0f97557bc15de98e145d9345288d060cAdam Powell } else { 3404c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell final boolean atOverscrollEdge = overScrollBy(0, overscroll, 3405c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 0, mScrollY, 0, 0, 0, mOverscrollDistance, true); 3406c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 3407c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (atOverscrollEdge && mVelocityTracker != null) { 3408c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell // Don't allow overfling if we're at the edge 3409c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mVelocityTracker.clear(); 341078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 341178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 341296d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int overscrollMode = getOverScrollMode(); 341396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 341496d62aff0f97557bc15de98e145d9345288d060cAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 341596d62aff0f97557bc15de98e145d9345288d060cAdam Powell !contentFits())) { 3416c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (!atOverscrollEdge) { 3417c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mDirection = 0; // Reset when entering overscroll. 3418c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3419c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } 3420c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (incrementalDeltaY > 0) { 34212897a6fdedd23efe96cd373886da78f1f1d18442Adam Powell mEdgeGlowTop.onPull((float) -overscroll / getHeight(), 3422c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 342396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowBottom.isFinished()) { 342496d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowBottom.onRelease(); 342596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3426c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 3427c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 3428c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } else if (incrementalDeltaY < 0) { 3429c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight(), 3430c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 343196d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowTop.isFinished()) { 343296d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowTop.onRelease(); 343396d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3434c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 3435c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 3436c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 343778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 343978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 344078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3441fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mMotionY = y + lastYCorrection + scrollOffsetCorrection; 344278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 344343943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee mLastY = y + lastYCorrection + scrollOffsetCorrection; 344478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 344578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 344678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 344778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 344878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 344978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 345078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 345178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 345278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 345378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 345478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 345578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 345678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 345778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 345878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 345978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 346078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 346178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 346278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 346378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 346478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 346578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 346678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 346778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 346878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 346978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 347078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 3471c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.onPull((float) overScrollDistance / getHeight(), 3472c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 347378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 347478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 347578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3476c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 3477c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 347878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 3479c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight(), 3480c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 348178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 348278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 348378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3484c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 3485c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 3486c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 348778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 348878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 348978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 349078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 349178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 349278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 34939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 34949d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 34959d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 349678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 349778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 34989d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 34999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 350078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 350178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 350278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 350378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 350478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 350578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 350678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 350778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 350878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 3509fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mMotionY = y + scrollOffsetCorrection; 351078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 351178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3512fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mLastY = y + lastYCorrection + scrollOffsetCorrection; 351378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 351478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 351578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 351678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 351778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 35188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35311e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35384032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35394032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35404032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3541637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 35440fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3554dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3555dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3556dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3557dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3558dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3559dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 35601fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 35611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 35621fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 35631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 3564462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 356528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 356628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 356728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 356828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 356928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 357028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 357128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 357296d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 357396d62aff0f97557bc15de98e145d9345288d060cAdam Powell 35748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 35758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette boolean intercepted = mFastScroll.onTouchEvent(ev); 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 358082f3495b146b267f3786997752cef25310176349Romain Guy 358113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 358296d62aff0f97557bc15de98e145d9345288d060cAdam Powell final MotionEvent vtev = MotionEvent.obtain(ev); 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 35858fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 35868fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 35878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 35888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35898fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35918fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 359296d62aff0f97557bc15de98e145d9345288d060cAdam Powell onTouchMove(ev, vtev); 35938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35959d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 35968fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 35978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 35988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3600e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 36028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 36038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36048fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3605e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 36078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 36088fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 36098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 36108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 36118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 36128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 36138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 36148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 36158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 36168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 36188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3620fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 36218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 36228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 36238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 36248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 36258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 36268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 36278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 36288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 36298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 36308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 36318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 36328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 36338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 36348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 36358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 36368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 36378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 36398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3640fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3641e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 364396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mVelocityTracker != null) { 364496d62aff0f97557bc15de98e145d9345288d060cAdam Powell mVelocityTracker.addMovement(vtev); 364596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 364696d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.recycle(); 3647e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3648e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3649e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3650e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 36513d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 36523d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 36533d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 36543d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3655e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3656e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3657e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3658e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3660e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 36613d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 36623d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3663e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3664e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 36653d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3666e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3667e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3668e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 36693d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3670e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 36713d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 36723d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 36733d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 36743d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 36753d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 36763d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 36773d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 36783d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 36793d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 36803d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 36813d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3682e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 36833d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3684e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3685e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3686e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3687e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36883d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3689d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.x = ev.getX(); 3690d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.y = ev.getY(); 3691e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3692e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36932585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 36946f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3695e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3696e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 36973d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3698e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 36996f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 37003d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3701e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3702e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3703e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3704e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3705e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37066f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3707b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3708b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 37093d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3710e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3711e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3712e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 371396d62aff0f97557bc15de98e145d9345288d060cAdam Powell private void onTouchMove(MotionEvent ev, MotionEvent vtev) { 3714e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3715e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3716e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3717e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3718e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3719e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3720e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3721e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3722e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3723e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3724e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3725e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 37268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 37278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3728e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 37298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 37308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 37318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 37328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 373374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 3734c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, vtev)) { 373574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 373674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 373774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 373874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 37393d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 37403d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 374174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 374274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 374374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 374474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 374574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 374674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 374774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 374874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 374974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 375074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 37518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 37528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 37538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 3754c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded((int) ev.getX(pointerIndex), y, vtev); 37558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3757e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3760e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3761e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3762e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3763e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3764e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3765e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 376674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3767e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3768e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3769e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3770e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 377174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 377274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 377374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 377474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 377574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 377674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3777e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 377874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 377974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 378074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 378274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 378474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 378574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3786e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 378774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 378874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 378974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 379074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 379174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 379274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 379374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 379474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 379574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 379674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 379774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 379874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3800c80ad99a33ee49d0bac994c1749ff24d243c3862Alan Viverette mSelector.setHotspot(x, ev.getY()); 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 380274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 380374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 380474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 380574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 380674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 380774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 380874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 380974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 381074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 381174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 3812462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (!mDataChanged && !mIsDetaching && isAttachedToWindow()) { 381374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 381474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 381574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 381674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 381774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 381874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 381974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 382074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 382174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 382274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 382374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 382474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 382574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3828e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3829e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3830e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3831e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3832e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3833e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3834e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3835e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3836e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3837e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3838e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3839e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3840e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3841e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3842e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3843e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3844e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3845e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3846e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3847e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3848e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3849e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3850e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3851e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3852e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3853e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3854aab726c53e761752e506471408b28673387cd10fAdam Powell boolean flingVelocity = Math.abs(initialVelocity) > mMinimumVelocity; 3855aab726c53e761752e506471408b28673387cd10fAdam Powell if (flingVelocity && 3856e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3857e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3858e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3859e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 38609413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (!dispatchNestedPreFling(0, -initialVelocity)) { 38619413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (mFlingRunnable == null) { 38629413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable = new FlingRunnable(); 38639413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } 38649413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 38659413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable.start(-initialVelocity); 38669413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell dispatchNestedFling(0, -initialVelocity, true); 38679413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } else { 38689413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mTouchMode = TOUCH_MODE_REST; 38699413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3870e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3871e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 38726198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 38736198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3874e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3875e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3876e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3877e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3878e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 38796198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 3880fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell if (flingVelocity && !dispatchNestedPreFling(0, -initialVelocity)) { 3881aab726c53e761752e506471408b28673387cd10fAdam Powell dispatchNestedFling(0, -initialVelocity, false); 3882aab726c53e761752e506471408b28673387cd10fAdam Powell } 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3885e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3886e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3887e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3889e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3891e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3892e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3893e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3895e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3896e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3897e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3899e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3900e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3901e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3902e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3903e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3906e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3907e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3909e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3911e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3912e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3913e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3916e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3917e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 391874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3919e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3921e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3923e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3924e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3925e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3926e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3928e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3930e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3931e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3932e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 39334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3934e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3936e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3937e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3938e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3939e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3940e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 39414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3942e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 39434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39449bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3945e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3946e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 39479bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3948e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3949e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3950e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3951e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 395274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3953e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3954e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3955e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3956e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 395774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3958e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3961e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3962e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3963e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3964e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3965e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39690a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 39700a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 39710a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 39720a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 39730a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 39740a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 39750a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 398033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 398133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 398233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 398333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 398433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 398533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 398633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 398733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3988275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 398933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 399033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 399133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 399233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 399333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 399433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 399533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 399633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 399733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 399833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 39994884c642882af0a279673d7a95485069e58beb69Adam Powell /** 40004884c642882af0a279673d7a95485069e58beb69Adam Powell * Initiate a fling with the given velocity. 40014884c642882af0a279673d7a95485069e58beb69Adam Powell * 40024884c642882af0a279673d7a95485069e58beb69Adam Powell * <p>Applications can use this method to manually initiate a fling as if the user 40034884c642882af0a279673d7a95485069e58beb69Adam Powell * initiated it via touch interaction.</p> 40044884c642882af0a279673d7a95485069e58beb69Adam Powell * 4005fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell * @param velocityY Vertical velocity in pixels per second. Note that this is velocity of 4006fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell * content, not velocity of a touch that initiated the fling. 40074884c642882af0a279673d7a95485069e58beb69Adam Powell */ 40084884c642882af0a279673d7a95485069e58beb69Adam Powell public void fling(int velocityY) { 40094884c642882af0a279673d7a95485069e58beb69Adam Powell if (mFlingRunnable == null) { 40104884c642882af0a279673d7a95485069e58beb69Adam Powell mFlingRunnable = new FlingRunnable(); 40114884c642882af0a279673d7a95485069e58beb69Adam Powell } 40124884c642882af0a279673d7a95485069e58beb69Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4013fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mFlingRunnable.start(velocityY); 40144884c642882af0a279673d7a95485069e58beb69Adam Powell } 40154884c642882af0a279673d7a95485069e58beb69Adam Powell 401633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 401796d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 401896d62aff0f97557bc15de98e145d9345288d060cAdam Powell return ((nestedScrollAxes & SCROLL_AXIS_VERTICAL) != 0); 401996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 402096d62aff0f97557bc15de98e145d9345288d060cAdam Powell 402196d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 402296d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScrollAccepted(View child, View target, int axes) { 402396d62aff0f97557bc15de98e145d9345288d060cAdam Powell super.onNestedScrollAccepted(child, target, axes); 402496d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 402596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 402696d62aff0f97557bc15de98e145d9345288d060cAdam Powell 402796d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 402896d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 402996d62aff0f97557bc15de98e145d9345288d060cAdam Powell int dxUnconsumed, int dyUnconsumed) { 403096d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int motionIndex = getChildCount() / 2; 403196d62aff0f97557bc15de98e145d9345288d060cAdam Powell final View motionView = getChildAt(motionIndex); 403296d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int oldTop = motionView != null ? motionView.getTop() : 0; 403396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView == null || trackMotionScroll(-dyUnconsumed, -dyUnconsumed)) { 403496d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myUnconsumed = dyUnconsumed; 403596d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myConsumed = 0; 403696d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView != null) { 403796d62aff0f97557bc15de98e145d9345288d060cAdam Powell myConsumed = motionView.getTop() - oldTop; 403896d62aff0f97557bc15de98e145d9345288d060cAdam Powell myUnconsumed -= myConsumed; 403996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 404096d62aff0f97557bc15de98e145d9345288d060cAdam Powell dispatchNestedScroll(0, myConsumed, 0, myUnconsumed, null); 404196d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 404296d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 404396d62aff0f97557bc15de98e145d9345288d060cAdam Powell 404496d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 404596d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 404696d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int childCount = getChildCount(); 404796d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!consumed && childCount > 0 && canScrollList((int) velocityY) && 404896d62aff0f97557bc15de98e145d9345288d060cAdam Powell Math.abs(velocityY) > mMinimumVelocity) { 404996d62aff0f97557bc15de98e145d9345288d060cAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 405096d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mFlingRunnable == null) { 405196d62aff0f97557bc15de98e145d9345288d060cAdam Powell mFlingRunnable = new FlingRunnable(); 405296d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 40539413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (!dispatchNestedPreFling(0, velocityY)) { 40549413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable.start((int) velocityY); 40559413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } 405696d62aff0f97557bc15de98e145d9345288d060cAdam Powell return true; 405796d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 405896d62aff0f97557bc15de98e145d9345288d060cAdam Powell return dispatchNestedFling(velocityX, velocityY, consumed); 405996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 406096d62aff0f97557bc15de98e145d9345288d060cAdam Powell 406196d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 4064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 4065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 40689be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell final int width = getWidth(); 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40709d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 40719be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell canvas.translate(0, edgeY); 4072a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 4073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 4074c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 4075c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 4080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 40819be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell final int width = getWidth(); 4082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 4083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40849be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell int edgeX = -width; 40859d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 40869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 4087e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 4088a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 4089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 4090c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 4091c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 4092c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 4093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 409907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 410007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 410107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 410207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 410307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 410407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 410507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 410607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 410713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 410813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 410913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 411013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 411113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 411213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 411313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 411413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 411513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 411613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 411713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 411813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 411913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 412013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 412113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 412213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 412313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 412413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 412513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 412613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 412713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 412813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 412913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 413013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 413113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 413213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 413313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 413413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 413513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4137a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 41388636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptHoverEvent(event)) { 4139a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 4140a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4141a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4142a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 4143a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4144a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4145a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 41490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 41501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 41511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 41521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 41531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4154462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 415528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 415628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 415728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 415828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 415928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 416028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 416128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 41628636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptTouchEvent(ev)) { 41630ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 41664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 416879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 4172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 41754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 41764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 41774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 417979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 419113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 419213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 419396d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 419479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 41954b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 41964b4f40f84e72579417604143e5f42115769649b8Romain Guy } 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 42032585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 42042585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 42052585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 42062585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 42072585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 42084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 420913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 421013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 4211c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, null)) { 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 421913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 42224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 422313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 422596d62aff0f97557bc15de98e145d9345288d060cAdam Powell stopNestedScroll(); 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 42304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 42314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 42324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 42394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 42404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 42414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 42424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 42434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 42444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 42454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 42464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 42474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 42484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 42504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 42514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 42524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 42870046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 43108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4311d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4312d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4313d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4315d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4316d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4317d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4318d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4319d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4320d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4321d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4322b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4323b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4324d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4325d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4326d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4327d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4328d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4329b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4330d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4331d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4332d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4333d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4334d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4335d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 433679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 434079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 43430b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 43471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 43561cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 43571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 43581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4368e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 43730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4374044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4375044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43781fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43934032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 43944032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 43954032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 43964032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 43974032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 44001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 44030b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 44060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 44091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4412d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 441579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4416d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 441721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 441821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 441921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4420d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 44215e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 44225e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 44235e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 44245e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 44255e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4426d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4427d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4428d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4429d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 443479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 443579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4436d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4439d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4440d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4441d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4442d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4443d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 44457f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 44467f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 44477f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 44487f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 444979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 445079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 445179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 445279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4478d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4482d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 44919d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 44929d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 45003cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 45013cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 45023cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 45079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 45091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4516637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4518d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4530637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4532044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4533044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4536044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4537044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4538044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4539044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4540044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4541044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4542044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4543044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4544044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4545044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4546044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4547044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4549637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 45501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4551637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The amount of friction applied to flings. The default value 4563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * is {@link ViewConfiguration#getScrollFriction}. 4564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setFriction(float friction) { 4566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.mScroller.setFriction(friction); 4570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets a scale factor for the fling velocity. The initial scale 4574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * factor is 1.0. 4575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scale The scale factor to multiply the velocity by. 4577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setVelocityScale(float scale) { 4579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mVelocityScale = scale; 4580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 45814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Override this for better control over position scrolling. 4584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller createPositionScroller() { 4586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new PositionScroller(); 4587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4588e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed. 4592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position) { 4595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position); 4599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Number of milliseconds to use for the scroll 4612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, duration); 4618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. 4626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset) { 4632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, offset); 4636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46374032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed, but it will 4641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * stop early if scrolling further would scroll boundPosition out of 4642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view. 4643cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * 4644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param boundPosition Do not scroll if it would move this adapter 4646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * position out of view. 4647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position, int boundPosition) { 4649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position, boundPosition); 4653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4654aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll by distance pixels over duration milliseconds. 4657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param distance Distance to scroll in pixels. 4658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Duration of the scroll animation in milliseconds. 4659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollBy(int distance, int duration) { 4661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, false); 4662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4663e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollBy(int distance, int duration, boolean linear) { 4665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No sense starting to scroll if we're not going anywhere 4670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 4671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount; 4673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int topLimit = getPaddingTop(); 4674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomLimit = getHeight() - getPaddingBottom(); 46754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (distance == 0 || mItemCount == 0 || childCount == 0 || 4677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (lastPos == mItemCount && 4679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 4680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.endFling(); 4681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 4682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.startScroll(distance, duration, linear); 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Allows RemoteViews to scroll relatively to a position. 4692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollByOffset(int position) { 4694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = -1; 4695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getFirstVisiblePosition(); 4697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > 0) { 4698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getLastVisiblePosition(); 4699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47004032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index > -1) { 4702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(index - getFirstVisiblePosition()); 4703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child != null) { 4704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Rect visibleRect = new Rect(); 4705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getGlobalVisibleRect(visibleRect)) { 4706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the child is partially visible 4707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childRectArea = child.getWidth() * child.getHeight(); 4708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int visibleRectArea = visibleRect.width() * visibleRect.height(); 4709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette float visibleArea = (visibleRectArea / (float) childRectArea); 4710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float visibleThreshold = 0.75f; 4711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((position < 0) && (visibleArea < visibleThreshold)) { 4712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the top index is not perceivably visible so offset 4713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that top index as well 4714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ++index; 4715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the bottom index is not perceivably visible so offset 4717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that bottom index as well 4718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette --index; 4719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createScrollingCache() { 4727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 4728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(true); 4729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(true); 4730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = true; 4731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void clearScrollingCache() { 4735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isHardwareAccelerated()) { 4736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mClearScrollingCache == null) { 4737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mClearScrollingCache = new Runnable() { 4738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 4739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 4740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mCachingStarted) { 4741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = false; 4742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(false); 4743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 4744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(false); 4745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isAlwaysDrawnWithCacheEnabled()) { 4747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4750aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4751161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4752e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette post(mClearScrollingCache); 4754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4756e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 4759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y the amount of pixels to scroll by vertically 4761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #canScrollList(int) 4762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void scrollListBy(int y) { 4764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette trackMotionScroll(-y, -y); 4765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction Negative to check scrolling up, positive to check 4771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrolling down. 4772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if the list can be scrolled in the specified direction, 4773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * false otherwise. 4774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #scrollListBy(int) 4775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean canScrollList(int direction) { 4777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (direction > 0) { 4785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 4786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPosition = firstPosition + childCount; 4787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 4788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 4791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4793e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Track a motion scroll 4796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 4798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * began. Positive numbers mean the user's finger is moving down the screen. 4799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param incrementalDeltaY Change in deltaY from the previous event. 4800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if we're already at the beginning/end of the list and have nothing to do. 4801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 4803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 4806322171b333a1c796fcc1428a96ea1d854a3881faErik } 4807322171b333a1c796fcc1428a96ea1d854a3881faErik 4808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 48104032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4812aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // "effective padding" In this case is the amount of padding that affects 4814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // how much space should not be filled by items. If we don't clip to padding 4815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there is no effective padding. 4816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingTop = 0; 4817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingBottom = 0; 4818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingTop = listPadding.top; 4820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingBottom = listPadding.bottom; 4821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4822aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // FIXME account for grid vertical spacing too? 4824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceAbove = effectivePaddingTop - firstTop; 4825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = getHeight() - effectivePaddingBottom; 4826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceBelow = lastBottom - end; 48271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = getHeight() - mPaddingBottom - mPaddingTop; 4829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (deltaY < 0) { 4830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.max(-(height - 1), deltaY); 4831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.min(height - 1, deltaY); 4833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4834e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (incrementalDeltaY < 0) { 4836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 4837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 4839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4840e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4842e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update our guesses for where the first and last views are 4844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition == 0) { 4845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess = firstTop - listPadding.top; 4846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess += incrementalDeltaY; 4848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount == mItemCount) { 4850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess += incrementalDeltaY; 4853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4854234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollDown = (firstPosition == 0 && 4856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette firstTop >= listPadding.top && incrementalDeltaY >= 0); 4857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 4858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 4859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (cannotScrollDown || cannotScrollUp) { 4861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return incrementalDeltaY != 0; 4862e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4863e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean down = incrementalDeltaY < 0; 4865e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean inTouchMode = isInTouchMode(); 4867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (inTouchMode) { 4868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette hideSelector(); 4869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4870e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int headerViewsCount = getHeaderViewsCount(); 4872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int footerViewsStart = mItemCount - getFooterViewsCount(); 4873e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int start = 0; 4875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = 0; 4876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int top = -incrementalDeltaY; 4879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette top += listPadding.top; 4881e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getBottom() >= top) { 4885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4898e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int bottom = getHeight() - incrementalDeltaY; 4901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette bottom -= listPadding.bottom; 4903e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 4905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getTop() <= bottom) { 4907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start = i; 4910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.isAccessibilityFocused()) { 4916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.clearAccessibilityFocus(); 4917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4920e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4921e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4922e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4923e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 4925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = true; 4927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 4929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette detachViewsFromParent(start, count); 4930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.removeSkippedScrap(); 4931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 49324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // invalidate before moving the children to avoid unnecessary invalidate 4934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // calls to bubble up from the children all the way to the top 4935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!awakenScrollBars()) { 4936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offsetChildrenTopAndBottom(incrementalDeltaY); 4940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPosition += count; 4943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette fillGap(down); 4948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 4951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectedPosition - mFirstPosition; 4952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(mSelectedPosition, getChildAt(childIndex)); 4954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mSelectorPosition != INVALID_POSITION) { 4956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectorPosition - mFirstPosition; 4957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(INVALID_POSITION, getChildAt(childIndex)); 4959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorRect.setEmpty(); 4962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = false; 49654032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 4967e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of header views in the list. Header views are special views 4973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the top of the list that should not be recycled during a layout. 4974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of header views, 0 in the default implementation. 49764bede9e425875542976a422222510fa4056a8339Romain Guy */ 4977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeaderViewsCount() { 4978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 49794bede9e425875542976a422222510fa4056a8339Romain Guy } 498021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 498121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 4982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of footer views in the list. Footer views are special views 4983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the bottom of the list that should not be recycled during a layout. 49844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 4985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of footer views, 0 in the default implementation. 498621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 4987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getFooterViewsCount() { 4988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 498921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 49904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 49914bede9e425875542976a422222510fa4056a8339Romain Guy /** 4992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fills the gap left open by a touch-scroll. During a touch scroll, children that 4993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * remain on screen are shifted and the other ones are discarded. The role of this 4994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * method is to fill the gap thus created by performing a partial layout in the 4995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * empty space. 4996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param down true if the scroll is going down, false if it is going up 4998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void fillGap(boolean down); 5000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void hideSelector() { 5002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition != INVALID_POSITION) { 5003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLayoutMode != LAYOUT_SPECIFIC) { 5004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mSelectedPosition; 5005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 5007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mNextSelectedPosition; 5008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectedPositionInt(INVALID_POSITION); 5010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(INVALID_POSITION); 5011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedTop = 0; 5012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5014322171b333a1c796fcc1428a96ea1d854a3881faErik 5015322171b333a1c796fcc1428a96ea1d854a3881faErik /** 5016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 5017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 5018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of items available in the adapter 5019322171b333a1c796fcc1428a96ea1d854a3881faErik */ 5020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int reconcileSelectedPosition() { 5021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = mSelectedPosition; 5022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 5023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = mResurrectToPosition; 5024322171b333a1c796fcc1428a96ea1d854a3881faErik } 5025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.max(0, position); 5026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.min(position, mItemCount - 1); 5027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return position; 5028322171b333a1c796fcc1428a96ea1d854a3881faErik } 5029322171b333a1c796fcc1428a96ea1d854a3881faErik 5030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling 5032e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 5033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 5034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row containing y 5035e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 5036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract int findMotionRow(int y); 5037e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 5038e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 5039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling. 5040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 5042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row closest to y 5043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int findClosestMotionRow(int y) { 5045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 5047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return INVALID_POSITION; 5048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int motionRow = findMotionRow(y); 5051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Causes all the views to be rebuilt and redrawn. 5056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void invalidateViews() { 5058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 5059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 5060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 5061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 5062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5064499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If there is a selection returns false. 5066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Otherwise resurrects the selection and returns true if resurrected. 5067499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelectionIfNeeded() { 5069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && resurrectSelection()) { 5070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes the item at the supplied position selected. 50782f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 5079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the position of the new selection 50802f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 5081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void setSelectionInt(int position); 5082ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5083ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 5084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Attempt to bring the selection back if the user is switching from touch 5085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to trackball mode 5086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return Whether selection was set to something. 5087ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 5088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelection() { 5089ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 5090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount <= 0) { 5092ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 5093ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 5094ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedTop = 0; 5096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedPos; 5097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenTop = mListPadding.top; 5098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenBottom = mBottom - mTop - mListPadding.bottom; 5099ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 5100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int toPosition = mResurrectToPosition; 5101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean down = true; 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 5104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = toPosition; 5105bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 5106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View selected = getChildAt(selectedPos - mFirstPosition); 5107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = selected.getTop(); 5108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedBottom = selected.getBottom(); 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are scrolled, don't get in the fade 5111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedTop < childrenTop) { 5112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenTop + getVerticalFadingEdgeLength(); 5113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (selectedBottom > childrenBottom) { 5114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenBottom - selected.getMeasuredHeight() 5115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette - getVerticalFadingEdgeLength(); 5116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition < firstPosition) { 5119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Default to selecting whatever is first 5120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition; 5121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == 0) { 5126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remember the position of the first item 5127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we are scrolled at all 5129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition > 0 || top < childrenTop) { 5130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are scrolled, don't select anything that is 5131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // in the fade region 5132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenTop += getVerticalFadingEdgeLength(); 5133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (top >= childrenTop) { 5136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found a view whose top is fully visisble 5137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int itemCount = mItemCount; 5144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette down = false; 5145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + childCount - 1; 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 5148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 5150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = v.getBottom(); 5151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == childCount - 1) { 5153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 5155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenBottom -= getVerticalFadingEdgeLength(); 5156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom <= childrenBottom) { 5160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(mFlingRunnable); 5170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 5171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 5172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTouchMode = TOUCH_MODE_REST; 5174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearScrollingCache(); 5175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = selectedTop; 5176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = lookForSelectablePosition(selectedPos, down); 5177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 5178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 5179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectionInt(selectedPos); 5181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = INVALID_POSITION; 5184029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return selectedPos >= 0; 5188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void confirmCheckedPositionsById() { 5191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Clear out the positional check states, we'll rebuild it below from IDs. 5192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.clear(); 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean checkedCountChanged = false; 5195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 5196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long id = mCheckedIdStates.keyAt(checkedIndex); 5197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 5198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long lastPosId = mAdapter.getItemId(lastPos); 5200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id != lastPosId) { 5201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Look around to see if the ID is nearby. If not, uncheck it. 5202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 5203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 5204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean found = false; 5205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int searchPos = start; searchPos < end; searchPos++) { 5206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long searchId = mAdapter.getItemId(searchPos); 5207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id == searchId) { 5208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette found = true; 5209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(searchPos, true); 5210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.setValueAt(checkedIndex, searchPos); 5211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!found) { 5216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.delete(id); 5217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedIndex--; 5218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedItemCount--; 5219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedCountChanged = true; 5220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 5221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 5222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastPos, id, false); 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(lastPos, true); 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (checkedCountChanged && mChoiceActionMode != null) { 5231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode.invalidate(); 52329d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 5233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52349d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void handleDataChanged() { 5237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = mItemCount; 5238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int lastHandledItemCount = mLastHandledItemCount; 5239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastHandledItemCount = mItemCount; 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 5242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette confirmCheckedPositionsById(); 5243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 52444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: In the future we can recycle these views based on stable ID instead. 5246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.clearTransientStateViews(); 5247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 5249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int newPos; 5250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectablePos; 5251029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Find the row we are supposed to sync to 5253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 5254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update this first, since setNextSelectedPositionInt inspects it 5255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 5259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mForceTranscriptScroll) { 5263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mForceTranscriptScroll = false; 5264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listBottom = getHeight() - getPaddingBottom(); 5269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastChild = getChildAt(childCount - 1); 5270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFirstPosition + childCount >= lastHandledItemCount && 5272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= listBottom) { 5273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Something new came in and we didn't scroll; give the user a clue that 5277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there's something new. 5278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette awakenScrollBars(); 5279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mSyncMode) { 5282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_SELECTED_POSITION: 5283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isInTouchMode()) { 5284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We saved our state when not in touch mode. (We know this because 5285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 5286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // restore in touch mode. Just leave mSyncPosition as it is (possibly 5287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // adjusting if the available range changed) and return. 5288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we can find a position in the new data with the same 5294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // id as the old selection. This will change mSyncPosition. 5295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = findSyncPosition(); 5296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= 0) { 5297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found it. Now verify that new selection is still selectable 5298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos == newPos) { 5300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Same row id is selected 5301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = newPos; 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSyncHeight == getHeight()) { 5304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are at the same height as when we saved state, try 5305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to restore the scroll position too. 5306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are not the same height as when the selection was saved, so 5309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // don't try to restore the exact position 5310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SET_SELECTION; 5311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Restore selection 5314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(newPos); 5315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_FIRST_POSITION: 5321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Leave mSyncPosition as it is -- just pin to available range 5322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5327ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 5328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 5330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We couldn't find matching data -- try to use the same position 5331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = getSelectedItemPosition(); 5332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pin position to the available range 5334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= count) { 5335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = count - 1; 5336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos < 0) { 5338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = 0; 5339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we select something selectable -- first look down 5342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Looking down didn't work -- try looking up 5349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, false); 5350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We already know where we want to resurrect the selection 5358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mResurrectToPosition >= 0) { 5359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Nothing is selected. Give up and reset everything. 5366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 5367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedPosition = INVALID_POSITION; 5368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedRowId = INVALID_ROW_ID; 5369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedPosition = INVALID_POSITION; 5370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedRowId = INVALID_ROW_ID; 5371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorPosition = INVALID_POSITION; 5374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkSelectionChanged(); 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void onDisplayHint(int hint) { 5379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onDisplayHint(hint); 5380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (hint) { 5381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case INVISIBLE: 5382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case VISIBLE: 5387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing()) { 5388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopupHidden = hint == INVISIBLE; 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Removes the filter window 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void dismissPopup() { 5399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null) { 5400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.dismiss(); 5401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Shows the filter window 5406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void showPopup() { 5408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we have a window before showing the popup 5409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getWindowVisibility() == View.VISIBLE) { 5410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionPopup(); 5412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we get focus if we are showing the popup 5413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkFocus(); 5414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5416637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void positionPopup() { 5418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int screenHeight = getResources().getDisplayMetrics().heightPixels; 5419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int[] xy = new int[2]; 5420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getLocationOnScreen(xy); 5421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: The 20 below should come from the theme 5422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: And the gravity should be defined in the theme as well 5423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!mPopup.isShowing()) { 5425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 5426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette xy[0], bottomGap); 5427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.update(xy[0], bottomGap, -1, -1); 5429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 54324e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 5433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * What is the distance between the source and destination rectangles given the direction of 5434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * focus navigation between them? The direction basically helps figure out more quickly what is 5435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * self evident by the relationship between the rects... 5436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param source the source rectangle 5438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param dest the destination rectangle 5439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction the direction 5440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the distance between the rectangles 54414e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 5442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static int getDistance(Rect source, Rect dest, int direction) { 5443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int sX, sY; // source x, y 5444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int dX, dY; // dest x, y 5445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (direction) { 5446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_RIGHT: 5447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right; 5448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left; 5450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_DOWN: 5453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.bottom; 5455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top; 5457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_LEFT: 5459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left; 5460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.right; 5462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_UP: 5465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top; 5467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.bottom; 5469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_FORWARD: 5471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_BACKWARD: 5472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right + source.width() / 2; 5473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 5478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("direction must be one of " 5479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 5480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 54814e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 5482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaX = dX - sX; 5483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaY = dY - sY; 5484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return deltaY * deltaY + deltaX * deltaX; 5485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean isInFilterMode() { 5489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 54904e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sends a key to the text filter window 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param keyCode The keycode for the event 5496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param event The actual key event 5497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return True if the text filter handled the event, false otherwise. 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!acceptFilter()) { 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean handled = false; 5506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean okToSend = true; 5507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (keyCode) { 5508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_UP: 5509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_DOWN: 5510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_LEFT: 5511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_RIGHT: 5512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_CENTER: 5513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_ENTER: 5514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_BACK: 5517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && mPopup.isShowing()) { 5518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (event.getAction() == KeyEvent.ACTION_DOWN 5519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.getRepeatCount() == 0) { 5520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent.DispatcherState state = getKeyDispatcherState(); 5521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (state != null) { 5522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette state.startTracking(event, this); 5523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (event.getAction() == KeyEvent.ACTION_UP 5526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.isTracking() && !event.isCanceled()) { 5527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setText(""); 5529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_SPACE: 5534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Only send spaces once we are filtered 5535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = mFiltered; 5536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (okToSend) { 5540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent forwardEvent = event; 5543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (forwardEvent.getRepeatCount() > 0) { 5544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int action = event.getAction(); 5548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (action) { 5549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_DOWN: 5550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 5551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_UP: 5554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 5555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_MULTIPLE: 5558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyMultiple(keyCode, count, event); 5559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return handled; 5563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Return an InputConnection for editing of the filter text. 5567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isTextFilterEnabled()) { 5571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPublicInputConnection == null) { 5572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDefInputConnection = new BaseInputConnection(this, false); 5573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPublicInputConnection = new InputConnectionWrapper(outAttrs); 5574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 5576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 5577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mPublicInputConnection; 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private class InputConnectionWrapper implements InputConnection { 5583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final EditorInfo mOutAttrs; 5584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection mTarget; 558514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnectionWrapper(EditorInfo outAttrs) { 5587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOutAttrs = outAttrs; 5588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 558914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection getTarget() { 5591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) { 5592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget; 5595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 559614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean reportFullscreenMode(boolean enabled) { 5599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since it is 5600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the "real" one the IME is talking with. 5601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.reportFullscreenMode(enabled); 5602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performEditorAction(int editorAction) { 5606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The editor is off in its own window; we need to be 5607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the one that does this. 5608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (editorAction == EditorInfo.IME_ACTION_DONE) { 5609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette InputMethodManager imm = (InputMethodManager) 5610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (imm != null) { 5612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette imm.hideSoftInputFromWindow(getWindowToken(), 0); 561314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 561514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 561714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 561814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean sendKeyEvent(KeyEvent event) { 5621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since the filter 5622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // text view may not be shown in a window so has 5623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // no ViewAncestor to dispatch events with. 5624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.sendKeyEvent(event); 562514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 562614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextBeforeCursor(int n, int flags) { 5629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextBeforeCursor(n, flags); 5631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextAfterCursor(int n, int flags) { 5635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextAfterCursor(n, flags); 563714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getSelectedText(int flags) { 5641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getSelectedText(flags); 5643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5644539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public int getCursorCapsMode(int reqModes) { 5647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getCursorCapsMode(reqModes); 5649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().getExtractedText(request, flags); 5654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().deleteSurroundingText(beforeLength, afterLength); 5659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingText(CharSequence text, int newCursorPosition) { 5663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingText(text, newCursorPosition); 5664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingRegion(int start, int end) { 5668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingRegion(start, end); 5669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean finishComposingText() { 5673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget == null || mTarget.finishComposingText(); 5674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitText(CharSequence text, int newCursorPosition) { 5678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitText(text, newCursorPosition); 5679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCompletion(CompletionInfo text) { 5683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCompletion(text); 5684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCorrection(CorrectionInfo correctionInfo) { 5688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCorrection(correctionInfo); 5689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setSelection(int start, int end) { 5693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setSelection(start, end); 5694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performContextMenuAction(int id) { 5698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performContextMenuAction(id); 5699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean beginBatchEdit() { 5703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().beginBatchEdit(); 5704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean endBatchEdit() { 5708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().endBatchEdit(); 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean clearMetaKeyStates(int states) { 5713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().clearMetaKeyStates(states); 5714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performPrivateCommand(String action, Bundle data) { 5718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performPrivateCommand(action, data); 571943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 57200023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa 57210023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa @Override 5722d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa public boolean requestCursorUpdates(int cursorUpdateMode) { 5723d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa return getTarget().requestCursorUpdates(cursorUpdateMode); 5724d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa } 5725d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa 5726d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa /** 5727d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa * @removed 5728d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa */ 5729d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa @Override 5730a277db28e990d1f6f74ace0c32fe92401660a840Yohei Yukawa public boolean requestUpdateCursorAnchorInfo(int cursorUpdateMode) { 5731d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa return getTarget().requestCursorUpdates(cursorUpdateMode); 57320023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa } 573343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 573443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For filtering we proxy an input connection to an internal text editor, 5737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * and this allows the proxying to happen. 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean checkInputConnectionProxy(View view) { 5741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view == mTextFilter; 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Creates the window for the text filter and populates it with an EditText field; 5746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param animateEntrance true if the window should appear with an animation 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createTextFilter(boolean animateEntrance) { 5750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup == null) { 5751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PopupWindow p = new PopupWindow(getContext()); 5752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setFocusable(false); 5753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setTouchable(false); 5754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setContentView(getTextFilterInput()); 5756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setWidth(LayoutParams.WRAP_CONTENT); 5757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setHeight(LayoutParams.WRAP_CONTENT); 5758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setBackgroundDrawable(null); 5759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup = p; 5760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getViewTreeObserver().addOnGlobalLayoutListener(this); 5761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mGlobalLayoutListenerAddedFilter = true; 5762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (animateEntrance) { 5764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 5765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5770d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private EditText getTextFilterInput() { 5771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTextFilter == null) { 5772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter = (EditText) layoutInflater.inflate( 5774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette com.android.internal.R.layout.typing_filter, null); 5775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // For some reason setting this as the "real" input type changes 5776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the text view in some way that it doesn't work, and I don't 5777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // want to figure out why this is. 5778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.addTextChangedListener(this); 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTextFilter; 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clear the text filter. 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void clearTextFilter() { 5790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered) { 5791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getTextFilterInput().setText(""); 5792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns if the ListView currently has a text filter. 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasTextFilter() { 5803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 5804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onGlobalLayout() { 5808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isShown()) { 5809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the popup if we are filtered 5810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 5811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Hide the popup when we are no longer visible 5815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void beforeTextChanged(CharSequence s, int start, int count, int after) { 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Performs 5832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the actual filtering as the text changes, and takes care of hiding and 5833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * showing the popup displaying the currently entered filter text. 5834b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5835b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onTextChanged(CharSequence s, int start, int before, int count) { 5837c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int length = s.length(); 5840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean showing = mPopup.isShowing(); 5841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!showing && length > 0) { 5842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the filter popup if necessary 5843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = true; 5845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (showing && length == 0) { 5846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove the filter popup if the user has cleared all text 5847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter instanceof Filterable) { 5851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Filter f = ((Filterable) mAdapter).getFilter(); 5852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Filter should not be null when we reach this part 5853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (f != null) { 5854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette f.filter(s, this); 5855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalStateException("You cannot call onTextChanged with a non " 5857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "filterable adapter"); 5858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5860c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5861b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 58620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void afterTextChanged(Editable s) { 5869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5870f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onFilterComplete(int count) { 5873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && count > 0) { 5874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette resurrectSelection(); 5876f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5878f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5884f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 5887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new LayoutParams(p); 5888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5889f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams generateLayoutParams(AttributeSet attrs) { 5892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(getContext(), attrs); 5893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5894f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 5897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return p instanceof AbsListView.LayoutParams; 5898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59315be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 59325be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 59335be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 59345be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 59355be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 594052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 594152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 594252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 594352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 594452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 594552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 594652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 594752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59567b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views (excluding headers and footers) held by this AbsListView into the supplied 5963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * List. This includes views displayed on the screen as well as views stored in AbsListView's 5964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * internal view recycler. 5965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param views A list into which to put the reclaimed views 5967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void reclaimViews(List<View> views) { 5969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childCount = getChildCount(); 5970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette RecyclerListener listener = mRecycler.mRecyclerListener; 5971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Reclaim views on screen 5973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 5975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 5976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't reclaim header or footer views, or views that should be ignored 5977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 5978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.add(child); 5979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.setAccessibilityDelegate(null); 5980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (listener != null) { 5981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pretend they went through the scrap heap 5982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette listener.onMovedToScrapHeap(child); 5983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.reclaimScrapViews(views); 5987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeAllViewsInLayout(); 5988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void finishGlows() { 5991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mEdgeGlowTop != null) { 5992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowTop.finish(); 5993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowBottom.finish(); 5994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * through the specified intent. 6000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsAdapter(Intent intent) { 6003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 6005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 6007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcOld = new Intent.FilterComparison( 6008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.getRemoteViewsServiceIntent()); 6009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (fcNew.equals(fcOld)) { 6010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 6014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, create a new RemoteViewsAdapter for binding 6015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter.isDataReady()) { 6017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 6018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 6023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param handler The OnClickHandler to use when inflating RemoteViews. 6025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 6031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 6038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * connected yet. 6039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void deferNotifyDataSetChanged() { 6042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = true; 6043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter connects to the RemoteViewsService. 6047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onRemoteAdapterConnected() { 6050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != mAdapter) { 6051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 6052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDeferNotifyDataSetChanged) { 6053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.notifyDataSetChanged(); 6054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 6055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mRemoteAdapter != null) { 6058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.superNotifyDataSetChanged(); 6059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter disconnects from the RemoteViewsService. 6066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onRemoteAdapterDisconnected() { 6069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the remote adapter disconnects, we keep it around 6070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // since the currently displayed items are still cached. 6071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Further, we want the service to eventually reconnect 6072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // when necessary, as triggered by this view requesting 6073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // items from the Adapter. 6074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * being displayed by the AbsListView. 6079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setVisibleRangeHint(int start, int end) { 6081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setVisibleRangeHint(start, end); 6083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the recycler listener to be notified whenever a View is set aside in 6088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the recycler for later reuse. This listener can be used to free resources 6089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to the View. 6090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param listener The recycler listener to be notified of views set aside 6092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * in the recycler. 6093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRecyclerListener(RecyclerListener listener) { 6098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.mRecyclerListener = listener; 6099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onChanged() { 6104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onChanged(); 6105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onInvalidated() { 6112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onInvalidated(); 6113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * selects and deselects list items. 6124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public interface MultiChoiceModeListener extends ActionMode.Callback { 6126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called when an item is checked or unchecked during selection mode. 6128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param mode The {@link ActionMode} providing the selection mode 6130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Adapter position of the item that was checked or unchecked 6131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param id Adapter ID of the item that was checked or unchecked 6132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param checked <code>true</code> if the item is now checked, <code>false</code> 6133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * if the item is now unchecked. 6134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked); 6137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private MultiChoiceModeListener mWrapped; 6141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setWrapped(MultiChoiceModeListener wrapped) { 6143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped = wrapped; 6144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasWrappedCallback() { 6147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped != null; 6148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mWrapped.onCreateActionMode(mode, menu)) { 6153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Initialize checked graphic state? 6154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(false); 6155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onPrepareActionMode(mode, menu); 6163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onActionItemClicked(mode, item); 6168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onDestroyActionMode(ActionMode mode) { 6172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onDestroyActionMode(mode); 6173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode = null; 6174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ending selection mode means deselecting everything. 6176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearChoices(); 6177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 6179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 6180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(true); 6183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked) { 6188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If there are no items selected we no longer need the selection mode. 6191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getCheckedItemCount() == 0) { 6192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mode.finish(); 6193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * AbsListView extends LayoutParams to provide a place to hold the view type. 6199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static class LayoutParams extends ViewGroup.LayoutParams { 6201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * View type for this view, as returned by 6203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link android.widget.Adapter#getItemViewType(int) } 6204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list", mapping = { 6206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 6207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 6208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }) 6209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewType; 6210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When this boolean is set, the view has been added to the AbsListView 6213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at least once. It is used to know whether headers/footers have already 6214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * been added to the list view and whether they should be treated as 6215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * recycled views or not. 6216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean recycledHeaderFooter; 6219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When an AbsListView is measured with an AT_MOST measure spec, it needs 6222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to obtain children views to measure itself. When doing so, the children 6223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * are not attached to the window, but put in the recycler which assumes 6224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * they've been attached before. Setting this flag will force the reused 6225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view to be attached to the window rather than just attached to the 6226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * parent. 6227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean forceAdd; 6230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position the view was removed from when pulled out of the 6233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrap heap. 6234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrappedFromPosition; 6237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The ID the view represents 6240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long itemId = -1; 6242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(Context c, AttributeSet attrs) { 6244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(c, attrs); 6245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h) { 6248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h, int viewType) { 6252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette this.viewType = viewType; 6254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(ViewGroup.LayoutParams source) { 6257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(source); 6258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A RecyclerListener is used to receive a notification whenever a View is placed 6263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * inside the RecycleBin's scrap heap. This listener is used to free resources 6264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to Views placed in the RecycleBin. 6265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static interface RecyclerListener { 6270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Indicates that the specified View was moved into the recycler's scrap heap. 6272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The view is not displayed on screen any more and any expensive resource 6273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated with the view should be discarded. 6274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param view 6276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void onMovedToScrapHeap(View view); 6278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 6282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 6283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * start of a layout. By construction, they are displaying current information. At the end of 6284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 6285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * could potentially be used by the adapter to avoid allocating views unnecessarily. 6286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class RecycleBin { 6291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private RecyclerListener mRecyclerListener; 6292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position of the first view stored in mActiveViews. 6295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mFirstActivePosition; 6297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views that were on screen at the start of layout. This array is populated at the start of 6300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 6301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views in mActiveViews represent a contiguous range of Views, with position of the first 6302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view store in mFirstActivePosition. 6303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private View[] mActiveViews = new View[0]; 6305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Unsorted views that can be used by the adapter as a convert view. 6308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View>[] mScrapViews; 6310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mViewTypeCount; 6312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mCurrentScrap; 6314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mSkippedScrap; 6316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private SparseArray<View> mTransientStateViews; 6318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private LongSparseArray<View> mTransientStateViewsById; 6319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setViewTypeCount(int viewTypeCount) { 6321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTypeCount < 1) { 6322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 6323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection unchecked 6325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 6326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; i++) { 6327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews[i] = new ArrayList<View>(); 6328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mViewTypeCount = viewTypeCount; 6330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap = scrapViews[0]; 6331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews = scrapViews; 6332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void markChildrenDirty() { 6335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).forceLayout(); 6340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).forceLayout(); 6348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViews.size(); 6353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.valueAt(i).forceLayout(); 6355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById != null) { 6358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViewsById.size(); 6359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.valueAt(i).forceLayout(); 6361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean shouldRecycleViewType(int viewType) { 6366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return viewType >= 0; 6367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clears the scrap heap. 6371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clear() { 6373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 63753e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 63803e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearTransientStateViews(); 6385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fill ActiveViews with all of the children of the AbsListView. 6389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param childCount The minimum number of views mActiveViews should hold 6391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param firstActivePosition The position of the first view that will be stored in 6392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews 6393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void fillActiveViews(int childCount, int firstActivePosition) { 6395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mActiveViews.length < childCount) { 6396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mActiveViews = new View[childCount]; 6397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstActivePosition = firstActivePosition; 6399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection MismatchedReadAndWriteOfArray 6401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't put header or footer views into the scrap heap 6406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 6408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // However, we will NOT place them into scrap views. 6409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = child; 6410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Get the view corresponding to the specified position. The view will be removed from 6416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews if it is found. 6417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The position to look up in mActiveViews 6419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The view if it is found, null otherwise 6420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getActiveView(int position) { 6422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = position - mFirstActivePosition; 6423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >=0 && index < activeViews.length) { 6425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View match = activeViews[index]; 6426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[index] = null; 6427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return match; 6428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getTransientStateView(int position) { 6433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(position); 6435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViewsById.get(id); 6436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.remove(id); 6437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = mTransientStateViews.indexOfKey(position); 6441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0) { 6442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViews.valueAt(index); 6443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.removeAt(index); 6444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6447d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Dumps and fully detaches any currently saved views with transient 6452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * state. 6453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clearTransientStateViews() { 6455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> viewsByPos = mTransientStateViews; 6456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsByPos != null) { 6457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsByPos.size(); 6458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsByPos.valueAt(i), false); 6460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsByPos.clear(); 6462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> viewsById = mTransientStateViewsById; 6465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsById != null) { 6466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsById.size(); 6467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsById.valueAt(i), false); 6469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsById.clear(); 6471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A view from the ScrapViews collection. These are unordered. 6476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getScrapView(int position) { 6478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mCurrentScrap, position); 6480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 64813e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int whichScrap = mAdapter.getItemViewType(position); 6482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mScrapViews[whichScrap], position); 6484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts a view into the list of scrap views. 6491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * <p> 6492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * with transient state will be preserved for later retrieval. 6494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scrap The view to add 6496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The view's position within its parent 6497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void addScrapView(View scrap, int position) { 6499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 6500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp == null) { 6501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = position; 6505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove but don't scrap header or footer views, or views that 6507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // should otherwise not be recycled. 6508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewType = lp.viewType; 6509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!shouldRecycleViewType(viewType)) { 6510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.dispatchStartTemporaryDetach(); 6514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The the accessibility state of the view may change while temporary 6516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // detached and we do not allow detached views to fire accessibility 6517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // events. So we are announcing that the subtree changed giving a chance 6518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to clients holding on to a view in this subtree to refresh it. 6519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette notifyViewAccessibilityStateChangedIfNeeded( 6520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scrap views that have transient state. 6523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean scrapHasTransientState = scrap.hasTransientState(); 6524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrapHasTransientState) { 6525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the adapter has stable IDs, we can reuse the view for 6527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the same data. 6528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the data hasn't changed, we can reuse the views at 6534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // their old positions. 6535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(position, scrap); 6539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, we'll have to remove the view and start over. 6541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap = new ArrayList<View>(); 6543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.add(scrap); 6545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap.add(scrap); 6549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews[viewType].add(scrap); 6551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRecyclerListener != null) { 6554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Finish the removal of any views that skipped the scrap heap. 6561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void removeSkippedScrap() { 6563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mSkippedScrap.size(); 6567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(mSkippedScrap.get(i), false); 6569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.clear(); 6571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views remaining in mActiveViews to mScrapViews. 6575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void scrapActiveViews() { 6577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean hasListener = mRecyclerListener != null; 6579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean multipleScraps = mViewTypeCount > 1; 6580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View> scrapViews = mCurrentScrap; 6582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = count - 1; i >= 0; i--) { 6584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp 6587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette = (AbsListView.LayoutParams) victim.getLayoutParams(); 6588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int whichScrap = lp.viewType; 6589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = null; 6591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim.hasTransientState()) { 6593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store views with transient state for later use. 6594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(mFirstActivePosition + i); 6601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(id, victim); 6602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(mFirstActivePosition + i, victim); 6607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The data has changed, we can't keep this view. 6609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!shouldRecycleViewType(whichScrap)) { 6612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Discard non-recyclable views except headers/footers. 6613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store everything else on the appropriate scrap heap. 6618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (multipleScraps) { 6619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews = mScrapViews[whichScrap]; 6620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = mFirstActivePosition + i; 6624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews.add(victim); 66259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (hasListener) { 6627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(victim); 6628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette pruneScrapViews(); 6634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 6636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes sure that the size of mScrapViews does not exceed the size of 6638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews, which can happen if an adapter does not recycle its 6639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * views. Removes cached transient state views that no longer have 6640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * transient state. 6641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void pruneScrapViews() { 6643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int maxViews = mActiveViews.length; 6644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int size = scrapPile.size(); 6649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extras = size - maxViews; 6650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette size--; 6651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < extras; j++) { 6652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(scrapPile.remove(size--), false); 6653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6655499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> transViewsByPos = mTransientStateViews; 6657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsByPos != null) { 6658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsByPos.size(); i++) { 6659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsByPos.valueAt(i); 6660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsByPos.removeAt(i); 6663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6667a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> transViewsById = mTransientStateViewsById; 6669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsById != null) { 6670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsById.size(); i++) { 6671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsById.valueAt(i); 6672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsById.removeAt(i); 6675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 6681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts all views in the scrap heap into the supplied list. 6683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void reclaimScrapViews(List<View> views) { 6685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(mCurrentScrap); 6687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(scrapPile); 6693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 6695499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6696499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Updates the cache color hint of all known views. 6699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param color The new cache color hint. 6701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setCacheColorHint(int color) { 6703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).setDrawingCacheBackgroundColor(color); 6708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).setDrawingCacheBackgroundColor(color); 6716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Just in case this is called during a layout pass 6720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; ++i) { 6723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.setDrawingCacheBackgroundColor(color); 6726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6729499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 67303e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 67313e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int size = scrapViews.size(); 67323e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (size > 0) { 67333e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette // See if we still have a view for this position or ID. 67343e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int i = 0; i < size; i++) { 67353e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View view = scrapViews.get(i); 67363e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final AbsListView.LayoutParams params = 67373e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette (AbsListView.LayoutParams) view.getLayoutParams(); 67383e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67393e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (mAdapterHasStableIds) { 67403e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final long id = mAdapter.getItemId(position); 67413e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (id == params.itemId) { 67423e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrapViews.remove(i); 67433e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67443e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else if (params.scrappedFromPosition == position) { 67453e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(i); 67463e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 67473e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 67483e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 6749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67503e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(size - 1); 67513e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 67523e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 67533e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else { 67543e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return null; 6755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67563e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67573e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67583e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearScrap(final ArrayList<View> scrap) { 67593e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int scrapCount = scrap.size(); 67603e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int j = 0; j < scrapCount; j++) { 67613e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 67623e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67633e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67643e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67653e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearAccessibilityFromScrap(View view) { 67663e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (view.isAccessibilityFocused()) { 67673e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.clearAccessibilityFocus(); 67683e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67693e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.setAccessibilityDelegate(null); 67703e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67713e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67723e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void removeDetachedView(View child, boolean animate) { 67733e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette child.setAccessibilityDelegate(null); 67743e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette AbsListView.this.removeDetachedView(child, animate); 6775b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6776b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6777b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6778b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 6779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of the view for the specified position. 67809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 6782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return view height in pixels 67839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeightForPosition(int position) { 6785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstVisiblePosition = getFirstVisiblePosition(); 6786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = position - firstVisiblePosition; 6788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0 && index < childCount) { 6789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is on-screen, use existing view. 6790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = getChildAt(index); 6791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view.getHeight(); 6792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is off-screen, obtain & recycle view. 6794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = obtainView(position, mIsScrap); 6795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette view.measure(mWidthMeasureSpec, MeasureSpec.UNSPECIFIED); 6796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = view.getMeasuredHeight(); 6797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(view, position); 6798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return height; 6799b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6800b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6801b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 68029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the selected item and positions the selection y pixels from the top edge 6804d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the ListView. (If in touch mode, the item will not be selected but it will 6805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * still be positioned appropriately.) 6806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Index (starting at 0) of the data item to be selected. 6808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y The distance from the top edge of the ListView (plus padding) that the 6809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * item will be positioned. 6810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setSelectionFromTop(int position, int y) { 6812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter == null) { 6813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6814a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6815a798170f2abe198f806b12dd904830bc25257525Adam Powell 6816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 6817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = lookForSelectablePosition(position, true); 6818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(position); 6820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = position; 6823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 6827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = mListPadding.top + y; 6828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 6830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = position; 6831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncRowId = mAdapter.getItemId(position); 6832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 6835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 6836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract positon scroller used to handle smooth scrolling. 68439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static abstract class AbsPositionScroller { 6845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position); 6846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position, int boundPosition); 6847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset); 6848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset, int duration); 6849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void stop(); 6850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6851079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Default position scroller that simulates a fling. 6854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class PositionScroller extends AbsPositionScroller implements Runnable { 6856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int SCROLL_DURATION = 200; 6857539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_POS = 1; 6859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_POS = 2; 6860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_BOUND = 3; 6861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_BOUND = 4; 6862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_OFFSET = 5; 68639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mMode; 6865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mTargetPos; 6866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mBoundPos; 6867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mLastSeenPos; 6868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mScrollDuration; 6869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final int mExtraScroll; 68709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mOffsetFromTop; 68729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PositionScroller() { 6874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 68759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position) { 6879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 68809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 68969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 68999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - clampedPosition + 1; 6904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = clampedPosition - lastPos + 1; 6907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 6908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 6910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 6917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 69219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6924539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position, final int boundPosition) { 6927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6928539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosition == INVALID_POSITION) { 6930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 69329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position, boundPosition); 6939f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6942f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6948539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromLast = lastPos - boundPosition; 6957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromLast < 1) { 6958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6960728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 69610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = firstPos - clampedPosition + 1; 6963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromLast - 1; 6964d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_BOUND; 6967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6969d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromFirst = boundPosition - firstPos; 6973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromFirst < 1) { 6974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = clampedPosition - lastPos + 1; 6979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromFirst - 1; 6980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 6981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 6982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_BOUND; 6983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6984d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 6985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 69869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 6989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 69909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6991595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 6992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 69969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = boundPosition; 6999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 70009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 70029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 7006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, offset, SCROLL_DURATION); 70079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(final int position, int offset, final int duration) { 7011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 7012539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 7014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 7015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int postOffset = offset; 7016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 7017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 7018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, postOffset, duration); 7019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 7021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7022539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7023595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 7026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 7027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7028728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 7029539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offset += getPaddingTop(); 7031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 7033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOffsetFromTop = offset; 7034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 7035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 7036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_OFFSET; 7037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 7042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTargetPos < firstPos) { 7043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - mTargetPos; 7044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTargetPos > lastPos) { 7045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = mTargetPos - lastPos; 70469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 7049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(targetTop - offset, duration, true); 7050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 70519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = screenTravelCount < 1 ? 7056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette duration : (int) (duration / screenTravelCount); 7057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 7058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 70609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 70629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scroll such that targetPos is in the visible padded region without scrolling 7064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * boundPos out of view. Assumes targetPos is onscreen. 70659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void scrollToVisible(int targetPos, int boundPos, int duration) { 7067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedTop = mListPadding.top; 7071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedBottom = getHeight() - mListPadding.bottom; 7072539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetPos < firstPos || targetPos > lastPos) { 7074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 7075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette " not visible [" + firstPos + ", " + lastPos + "]"); 7076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos < firstPos || boundPos > lastPos) { 7078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // boundPos doesn't matter, it's already offscreen. 7079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boundPos = INVALID_POSITION; 7080d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 7081d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 7082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View targetChild = getChildAt(targetPos - firstPos); 7083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = targetChild.getTop(); 7084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetBottom = targetChild.getBottom(); 7085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrollBy = 0; 7086d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 7087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetBottom > paddedBottom) { 7088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetBottom - paddedBottom; 7089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetTop < paddedTop) { 7091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetTop - paddedTop; 7092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy == 0) { 7095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70971e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 7098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos >= 0) { 7099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View boundChild = getChildAt(boundPos - firstPos); 7100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTop = boundChild.getTop(); 7101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundBottom = boundChild.getBottom(); 7102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absScroll = Math.abs(scrollBy); 71039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 7105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the bottom of the screen. 7106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.max(0, boundBottom - paddedBottom); 7107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 7108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the top of the screen. 7109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.min(0, boundTop - paddedTop); 7110d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 71119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, duration); 71149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void stop() { 7118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(this); 7119539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7120539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 7123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listHeight = getHeight(); 7124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 71259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mMode) { 7127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_POS: { 7128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 1; 7129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 71309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 71349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7140595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = lastPos < mItemCount - 1 ? 7146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 71479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 7149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, mScrollDuration, true); 71509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos < mTargetPos) { 7153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 71549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 71569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_BOUND: { 7159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewIndex = 1; 7160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 71619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mBoundPos || childCount <= nextViewIndex 7163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette || firstPos + childCount >= mItemCount) { 7164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 71659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextPos = firstPos + nextViewIndex; 7167bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 7168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos == mLastSeenPos) { 7169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View nextView = getChildAt(nextViewIndex); 7175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewHeight = nextView.getHeight(); 7176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewTop = nextView.getTop(); 7177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 7178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos < mBoundPos) { 7179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 7180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration, true); 7181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = nextPos; 7183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextViewTop > extraScroll) { 7187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 7188bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7189bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7191bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7192595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_POS: { 7194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mLastSeenPos) { 7195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7198728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 71999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View firstView = getChildAt(0); 7201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstView == null) { 7202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 72039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstViewTop = firstView.getTop(); 7205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = firstPos > 0 ? 7206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 720752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 7208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 7209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos > mTargetPos) { 7213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 721452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 721652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_BOUND: { 7219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 2; 7220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 722252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 7224079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 7225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7229079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7230441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 7236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos > mBoundPos) { 7238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 7239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = listHeight - extraScroll; 7242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewBottom = lastViewTop + lastViewHeight; 7243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom > lastViewBottom) { 7244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 7245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7248441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7249441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_OFFSET: { 7251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLastSeenPos == firstPos) { 7252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7256441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7258441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int position = mTargetPos; 7261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7262441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount = 0; 7264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - position + 1; 7266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = position - lastPos; 7268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7269441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7272441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 7274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (-getHeight() * modifier); 7276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (getHeight() * modifier); 7281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(position - firstPos).getTop(); 7287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = targetTop - mOffsetFromTop; 7288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * 7289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ((float) Math.abs(distance) / getHeight())); 7290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7293441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7294441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 7296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7297441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7298441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7299441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 73009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7301