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; 23b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viveretteimport android.graphics.PointF; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 27c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 325fade8c69aef621312232ef0647502d7a63990b9Romain Guyimport android.os.Trace; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 34f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.text.InputType; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 40539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 42079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 43f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 44637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 51f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 61c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 62a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 6376769ae02e713f50816ee67ff618b748d95050a8Alan Viveretteimport android.view.accessibility.AccessibilityNodeInfo.CollectionInfo; 640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 67f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 68f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 69b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 70f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 71f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 72b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 74a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 76335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 77335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 82d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 83d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 84d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 95f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 99499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 100499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 103539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 104539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 111de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 120de399397947c5379c61a1003c017b96accbbf545Alan Viverette 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we just received the touch event and we are waiting to see if the it is a tap or a 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 23039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 23139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 23239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 23339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 26114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 26214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 26314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 264f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 266f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 267f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 308079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 309079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 310079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 312079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3680211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller mPositionScroller; 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 45139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 45239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 45339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 50914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 51014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 51114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 51214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 51314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 546d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private CheckForTap mPendingCheckForTap; 5470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 559d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 560d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 561d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 562d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 563d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private FastScroller mFastScroll; 5898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 5908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 5918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Temporary holder for fast scroller style until a FastScroller object 5928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * is created. 5938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 5948636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette private int mFastScrollStyle; 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 596d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 598d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 6021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 6036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 605161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 6064296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 6074296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 60821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 6094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 61296d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollOffset = new int[2]; 61396d62aff0f97557bc15de98e145d9345288d060cAdam Powell private final int[] mScrollConsumed = new int[2]; 61496d62aff0f97557bc15de98e145d9345288d060cAdam Powell 615b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette private final float[] mTmpPoint = new float[2]; 616b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette 617744beffb6ae76d682c559970bb634722c835a32eAdam Powell // Used for offsetting MotionEvents that we feed to the VelocityTracker. 618744beffb6ae76d682c559970bb634722c835a32eAdam Powell // In the future it would be nice to be able to give this to the VelocityTracker 619744beffb6ae76d682c559970bb634722c835a32eAdam Powell // directly, or alternatively put a VT into absolute-positioning mode that only 620744beffb6ae76d682c559970bb634722c835a32eAdam Powell // reads the raw screen-coordinate x/y values. 621744beffb6ae76d682c559970bb634722c835a32eAdam Powell private int mNestedYOffset = 0; 622744beffb6ae76d682c559970bb634722c835a32eAdam Powell 62324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 62424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 62524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6386dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 65589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 66089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 678637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 679637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 680637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 681637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 682da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 683da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 684da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 685da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 686da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 68707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 68807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 68907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 690c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 691c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 692c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 693c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 694c1d7e770e123adfa992d013fa294693d077cbc78alanv 6954e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6964e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6974e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 698da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 699ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 700ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 701ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 702ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 703ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 7040b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 7050b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 7060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 7070b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 7080b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 709e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 710e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 711e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 712e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 713e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 714e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 715e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 716e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 717462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette * Whether the view is in the process of detaching from its window. 718462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette */ 719462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette private boolean mIsDetaching; 720462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 721462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette /** 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 75243943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee * @param scrollState The current scroll state. One of 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 770e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 771e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 772e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 773e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 774e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 775e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 776e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 777e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 778e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 779e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 780e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 781e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 782e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 783e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 784e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 785e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 79039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 79139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 794287c0361877057e50190cc0d7224e5bb2a7c4955Adam Powell initializeScrollbarsInternal(a); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 802617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 803617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 804617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 805617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 806617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 807617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 81039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 81139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 812617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 813617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette attrs, com.android.internal.R.styleable.AbsListView, defStyleAttr, defStyleRes); 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8428636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette int fastScrollStyle = a.getResourceId(R.styleable.AbsListView_fastScrollStyle, 0); 8438636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette setFastScrollStyle(fastScrollStyle); 8448636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 84920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 85020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 856d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 857df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 858d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 859d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 861d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 862d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8634296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8644296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8654296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8664296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 870d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 871d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 87889935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 87989935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 888d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 894539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 895539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 89714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 96882ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 96982ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 97082ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 99214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1031a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1032a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1033a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1034a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1035a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1036a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 104514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 107714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1096bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 11045bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11055bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 11075bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 110814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 11135bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 11205bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1121bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 112329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 11255bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 11265bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1127f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 113114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 113729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 114029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 114129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 114229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1145bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1146bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1147bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 115329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 115429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 115529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 115629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 115729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 115829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 115929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 116029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 116129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 116229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 116329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 116429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 116529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 116629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 116729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 116829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 116929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 117029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 117129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 117229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 117329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 117429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1200f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1203f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12342bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12352bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12374ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12384ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 124286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 124386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 124486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 124586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 124686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 124786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 124886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 124986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 125086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 125186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 125486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 125639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 125739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 125839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 125939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 126039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 126139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 126239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 126339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 126439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 126539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 126639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 126739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 126839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 126939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1270447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 127139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1272447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 127339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 12748636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12758636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(enabled); 127639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 12778636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll = new FastScroller(this, mFastScrollStyle); 12788636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setEnabled(true); 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 128026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1281b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 128226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 12838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 12848636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.updateLayout(); 12858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12868636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } 12878636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette 12888636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette /** 12898636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * Specifies the style of the fast scroller decorations. 12908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * 12918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @param styleResId style resource containing fast scroller properties 12928636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette * @see android.R.styleable#FastScroll 12938636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette */ 12948636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette public void setFastScrollStyle(int styleResId) { 12958636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 12968636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScrollStyle = styleResId; 12978636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette } else { 12988636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setStyle(styleResId); 129926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 130386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 130486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 130520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 130686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 130786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 130886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 130986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 131020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 131186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 131286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 131320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 131420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 131520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 131639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 131739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 131839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 131939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 132039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 132139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 132239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 132339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 132439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 132539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 132639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 132739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 132839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 132939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 133039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 133139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 133339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 133539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 133620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 13388636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13398636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setAlwaysShow(alwaysShow); 134020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 134220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 134439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 134539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 134639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 134739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 134820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 135020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 135186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 135220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 135386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 135420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 135520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 135620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 13578636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1358b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1359b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13608636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled() && mFastScroll.isAlwaysShowEnabled(); 1361b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 136220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 136420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 136520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 13668636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.isEnabled()) { 13678636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return Math.max(super.getVerticalScrollbarWidth(), mFastScroll.getWidth()); 136820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 136920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 137020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 137120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 137220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 137386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 137486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13808636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll == null) { 1381b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1382b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 13838636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette return mFastScroll.isEnabled(); 1384b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 138720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 138820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 138920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 13908636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13918636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(position); 139220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 139320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 139420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 139526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 139626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 139726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 13988636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 13998636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollBarStyle(style); 140026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 140126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 140226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14040ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 14050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1409b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 14230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14608636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 14618636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onScroll(mFirstPosition, getChildCount(), mItemCount); 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14660a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14704e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14714e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14724e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14734e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14744e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1475d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1476d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1477d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1478d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14799c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14804e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1481d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1482d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14834e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14844e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14854e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14874e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14888a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14898a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14908a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14918a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14928a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14938a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14948a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14958a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14968a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14978a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1498fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1499947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (canScrollUp()) { 1500fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 150180943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1502fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1503947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (canScrollDown()) { 1504fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 150580943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1506fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1507a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1508a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1509a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 151076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette int getSelectionModeForAccessibility() { 151176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette final int choiceMode = getChoiceMode(); 151276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette switch (choiceMode) { 151376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_NONE: 151476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 151576769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_SINGLE: 151676769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_SINGLE; 151776769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE: 151876769ae02e713f50816ee67ff618b748d95050a8Alan Viverette case CHOICE_MODE_MULTIPLE_MODAL: 151976769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_MULTIPLE; 152076769ae02e713f50816ee67ff618b748d95050a8Alan Viverette default: 152176769ae02e713f50816ee67ff618b748d95050a8Alan Viverette return CollectionInfo.SELECTION_MODE_NONE; 152276769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 152376769ae02e713f50816ee67ff618b748d95050a8Alan Viverette } 152476769ae02e713f50816ee67ff618b748d95050a8Alan Viverette 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1526a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 152748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 152848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 152948d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1530a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1531a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1532fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1533a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1534a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1535a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1536a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1537a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1538a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1539fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1540a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1541a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1542a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1543a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1544a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1545a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 154648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15478a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15495b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 15505b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 15515b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 15525b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 15535b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 15545b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15555b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 15565b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15575b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15585b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15595b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15605b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15615b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15625b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15635b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15645b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16296bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16418eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable( 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1685a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16862614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 168814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1708a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 17092614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1710f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 171143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 171243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 171314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 171443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 171543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 171643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 171743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 171814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1719f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1731a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17322614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1733f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 173443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 173543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 173643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 173743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 173843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 173914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1752f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1773f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1783e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1784e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1785e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1786e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1787e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1788e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1789e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1790e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1791e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1792e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1793e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1794e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1795e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1796e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1797e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 179899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18097becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 18107becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 18117becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 18127becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 18137becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 18147becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 18157becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 18167becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 18177becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 18187becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 182199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 182299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 182399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 182499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 182599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 182699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1845a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1846a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18479a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18489a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18499a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18509a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 185114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18529a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18539a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18549a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18559a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18569a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18579a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18582614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1860335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1861335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1862335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1863335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1878e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1887079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1889e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 19062614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 19072614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1908a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1909a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1910a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1911a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1912a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1917d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1918d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 19240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 196431986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1965b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1966b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1967b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1968b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1969b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1970b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1989161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1991e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1997079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 20410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 20420b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20690b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20700b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20720b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 21058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 21078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2121da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2122da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2123da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2124da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2125ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2126da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2127da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2128ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2129da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2130da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2133d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2134d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2135d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2136d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 2140d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2142d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 21434b95cc7ef7f1364799eba3bfa8830515282dcab7Alan Viverette final int childCount = getChildCount(); 2144f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2145f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2146f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2147f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2148f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2149f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21500ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 2155732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette 2156732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette // TODO: Move somewhere sane. This doesn't belong in onLayout(). 2157732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette if (mFastScroll != null) { 2158732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette mFastScroll.onItemCountChanged(getChildCount(), mItemCount); 2159732ca4642f042d04fb2ebb091bb829e33a3de3deAlan Viverette } 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2170d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2171d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2172d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2173d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2174d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2175d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2176d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2182d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2183d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2184d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21885d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21893e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @param focusedView view that holds accessibility focus 21903e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette * @return direct child that contains accessibility focus, or null if no 21915d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21925d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21933e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette View getAccessibilityFocusedChild(View focusedView) { 21945d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21955d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 21965d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 21975d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 21985d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21995d565faab21324862fa24490f116424e1b668b1dAlan Viverette 22005d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 22015d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 22025d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 22035d565faab21324862fa24490f116424e1b668b1dAlan Viverette 22045d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 22055d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 22065d565faab21324862fa24490f116424e1b668b1dAlan Viverette 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 2209947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette mScrollUp.setVisibility(canScrollUp() ? View.VISIBLE : View.INVISIBLE); 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 2213947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette mScrollDown.setVisibility(canScrollDown() ? View.VISIBLE : View.INVISIBLE); 2214947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 2215947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2217947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette private boolean canScrollUp() { 2218947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette boolean canScrollUp; 2219947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // 0th element is not visible 2220947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollUp = mFirstPosition > 0; 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2222947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // ... Or top of 0th element is not visible 2223947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (!canScrollUp) { 2224947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (getChildCount() > 0) { 2225947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette View child = getChildAt(0); 2226947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollUp = child.getTop() < mListPadding.top; 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2228947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2230947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette return canScrollUp; 2231947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette } 2232947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2233947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette private boolean canScrollDown() { 2234947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette boolean canScrollDown; 2235947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette int count = getChildCount(); 2236947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2237947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // Last item is not visible 2238947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollDown = (mFirstPosition + count) < mItemCount; 2239947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2240947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette // ... Or bottom of the last element is not visible 2241947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette if (!canScrollDown && count > 0) { 2242947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette View child = getChildAt(count - 1); 2243947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2245947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette 2246947a96956035e1ee22a82d18aec018b9046b641bAlan Viverette return canScrollDown; 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 231421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 231521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 23164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 231921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 23205fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 23215fade8c69aef621312232ef0647502d7a63990b9Romain Guy 232221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2324595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Check whether we have a transient state view. Attempt to re-bind the 2325595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // data and discard the view if we fail. 2326595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View transientView = mRecycler.getTransientStateView(position); 2327595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (transientView != null) { 2328ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final LayoutParams params = (LayoutParams) transientView.getLayoutParams(); 2329ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2330ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If the view type hasn't changed, attempt to re-bind the data. 2331ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (params.viewType == mAdapter.getItemViewType(position)) { 2332ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette final View updatedView = mAdapter.getView(position, transientView, this); 2333ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette 2334ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette // If we failed to re-bind the data, scrap the obtained view. 2335ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette if (updatedView != transientView) { 2336e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(updatedView, position); 2337ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette mRecycler.addScrapView(updatedView, position); 2338ff699570f62113b4df5b0efd74b9df8b9dbcd1a9Alan Viverette } 2339595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 2340595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 2341595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Scrap view implies temporary detachment. 2342595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette isScrap[0] = true; 2343595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette return transientView; 2344539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2345539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2346595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View scrapView = mRecycler.getScrapView(position); 2347595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette final View child = mAdapter.getView(position, scrapView, this); 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2350595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette // Failed to re-bind the data, return scrap to the heap. 2351079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 235221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2353a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 23541e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2355a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2357595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23584213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2359595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (mCacheColorHint != 0) { 2360595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setDrawingCacheBackgroundColor(mCacheColorHint); 2361595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette } 23624213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 2363595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 2364595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2367e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette setItemViewLayoutParams(child, position); 2368aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2369c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2370c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2371c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2372c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2373b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2374b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2375b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2376c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2377c1d7e770e123adfa992d013fa294693d077cbc78alanv 23785fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23795fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2383e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette private void setItemViewLayoutParams(View child, int position) { 2384e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2385e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette LayoutParams lp; 2386e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (vlp == null) { 2387e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateDefaultLayoutParams(); 2388e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else if (!checkLayoutParams(vlp)) { 2389e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) generateLayoutParams(vlp); 2390e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } else { 2391e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp = (LayoutParams) vlp; 2392e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2393e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2394e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette if (mAdapterHasStableIds) { 2395e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.itemId = mAdapter.getItemId(position); 2396e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2397e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette lp.viewType = mAdapter.getItemViewType(position); 2398e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette child.setLayoutParams(lp); 2399e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette } 2400e6be9c78b55c46e221ebc3cd6b08f1be3588b1d7Alan Viverette 2401c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2402c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 240350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 240450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 240550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 240650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 240750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 240850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 240950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 241050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 241150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 241250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 241350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 241450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2415c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2416c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2417c1d7e770e123adfa992d013fa294693d077cbc78alanv 2418c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24195b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2420c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2421c1d7e770e123adfa992d013fa294693d077cbc78alanv 2422c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2423c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2424fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2425fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2426fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2427fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2428c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 24299c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2430c1d7e770e123adfa992d013fa294693d077cbc78alanv 24319c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 24329c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2433c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2434c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2435c1d7e770e123adfa992d013fa294693d077cbc78alanv 24369c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 24379c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2438fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2439fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2440fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2441c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2442c1d7e770e123adfa992d013fa294693d077cbc78alanv 2443c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 24449c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 24459c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 24469c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 24479c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24489c3e0e68260fe50456996d75304b73054cbde94aalanv } 24499c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2450fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 24519c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 24529c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 24539c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 24549c3e0e68260fe50456996d75304b73054cbde94aalanv } 24559c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2456fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2457fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2458c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2459c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2460fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2461fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2462fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2463c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2464c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2465fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2466c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2467c1d7e770e123adfa992d013fa294693d077cbc78alanv 2468fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2469c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2470c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2471c1d7e770e123adfa992d013fa294693d077cbc78alanv 24725b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24885b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24895b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24905b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24915b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24925b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24935b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 24945b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 24955b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 24965b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 24975b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 24985b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24995b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 25005b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 25015b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 25025b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 25035b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25045b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 25055b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 25065b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 25075b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 25085b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25095b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 25105b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2511de399397947c5379c61a1003c017b96accbbf545Alan Viverette /** 2512d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette * Positions the selector in a way that mimics touch. 2513d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette */ 2514d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette void positionSelectorLikeTouch(int position, View sel, float x, float y) { 2515b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel, true, x, y); 2516d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette } 2517d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette 2518d361a4f98bbc03cb61b9ac4504eda490ff704b60Alan Viverette /** 25194d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette * Positions the selector in a way that mimics keyboard focus. 2520de399397947c5379c61a1003c017b96accbbf545Alan Viverette */ 2521de399397947c5379c61a1003c017b96accbbf545Alan Viverette void positionSelectorLikeFocus(int position, View sel) { 2522b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (mSelector != null && mSelectorPosition != position && position != INVALID_POSITION) { 2523de399397947c5379c61a1003c017b96accbbf545Alan Viverette final Rect bounds = mSelectorRect; 2524de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float x = bounds.exactCenterX(); 2525de399397947c5379c61a1003c017b96accbbf545Alan Viverette final float y = bounds.exactCenterY(); 2526b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel, true, x, y); 2527b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } else { 2528b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel); 2529de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2530de399397947c5379c61a1003c017b96accbbf545Alan Viverette } 2531de399397947c5379c61a1003c017b96accbbf545Alan Viverette 2532079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2533b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette positionSelector(position, sel, false, -1, -1); 2534b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 2535b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette 2536b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette private void positionSelector(int position, View sel, boolean manageHotspot, float x, float y) { 2537b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final boolean positionChanged = position != mSelectorPosition; 2538079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2539079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2540079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2541079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2544e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2545e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2546e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 25474d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 25484d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // Adjust for selection padding. 25494d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.left -= mSelectionLeftPadding; 25504d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.top -= mSelectionTopPadding; 25514d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.right += mSelectionRightPadding; 25524d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selectorRect.bottom += mSelectionBottomPadding; 25534d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette 25544d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette // Update the selector drawable. 25554d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette final Drawable selector = mSelector; 25564d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette if (selector != null) { 2557b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (positionChanged) { 2558b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Wipe out the current selector state so that we can start 2559b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // over in the new position with a fresh state. 2560b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setVisible(false, false); 2561b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setState(StateSet.NOTHING); 2562b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 25634d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette selector.setBounds(selectorRect); 2564b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (positionChanged) { 2565b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (getVisibility() == VISIBLE) { 2566b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setVisible(true, false); 2567b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 25682167b11de6f239d7f747d2e11897b6759232b8fdChet Haase updateSelectorState(); 2569b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 2570b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette if (manageHotspot) { 2571b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette selector.setHotspot(x, y); 2572b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 25734d2f2483f6d9e2eb25d843d676981f4ebc9c79e5Alan Viverette } 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2578a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2579079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2580079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 261620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 261720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 261820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 261920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 262020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 262120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 262220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 262320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 262420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 262520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 262620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 262720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 262820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 262920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 263020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 263120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 263220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 263320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 263420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 263520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 263620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 263720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 263820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 263920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 264020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2646d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 26478636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 26488636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.onSizeChanged(w, h, oldw, oldh); 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 2675f7dee54b62b02413fc6a0b8dc5666a7cd9758460Alan Viverette return (isFocused() && !isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2679079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 27078eea3ea5591e59f55cbb4f6b2b7e9363a285ced3Alan Viverette setSelector(getContext().getDrawable(resID)); 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2741df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2742df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2743df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2744df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2748079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2752ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2753ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2754ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2755ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2762df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2763df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2783079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2784079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2785079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2786079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2787079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2788079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2789079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2790079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2791079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2792079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2796079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2839e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2840e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2841e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2842e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2843e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2844e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28490e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 28500e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 28510e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 285482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 285582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 285682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 28576a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 28586a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 28596a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 28606a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 28616a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 286282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = true; 2870462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 28711f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 28721f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 28731f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 287421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 287521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 287621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 28780e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 28790e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 28809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 28810e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 288382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2884bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 288582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 288682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 288782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 28881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 28901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 28911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 28921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 28951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 28961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 28971cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2898d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2899d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2900d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2901d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2902d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2903d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 29044032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2905d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2906d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2907d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2908d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2909d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2910d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2911d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2912d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2913d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2914d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2915d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2916d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2917a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2918d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2919462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette 2920462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette mIsDetaching = false; 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2931670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2932670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2933670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2934670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2935670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 29364032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 29374032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 29384032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 29410fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2945670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 295497566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29783a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 29793a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 29803a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 29818636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 29828636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette mFastScroll.setScrollbarPosition(getVerticalScrollbarPosition()); 29833a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29843a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 29853a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30011487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 30021487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 30031487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 30041487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 30051487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 30061487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30071487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 30081487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 30091487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30101487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 30111487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 30121487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30131487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 30141487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 30151487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30161487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 30171487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 30250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 303129219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3044005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 3045005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 3046005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 3047005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 3048005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 30497890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 30507890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 30517890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 30527890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 30537890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 30547890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 30608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 30848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31078350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 3109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 3110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 31111e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 31121e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 3113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 31141e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 3115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 3116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 3117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 3140fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 3141fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 3142fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 3143fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 3144fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 3145fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 3146fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 3147fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 3148fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3149fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3150fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3151fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3152fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3153fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3178df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3179df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3180df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3181df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3182df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 318424d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3185dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3186dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3187dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3188df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3189dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3191dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 319345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 319445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 319545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 319645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3210b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette @Override 3211b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette public void dispatchDrawableHotspotChanged(float x, float y) { 3212b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Don't dispatch hotspot changes to children. We'll manually handle 3213b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // calling drawableHotspotChanged on the correct child. 3214b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } 3215b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 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 position of the item which contains the specified point, or 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3261d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette private final class CheckForTap implements Runnable { 3262d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float x; 3263d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette float y; 3264d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette 32658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3274b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final float[] point = mTmpPoint; 3275b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[0] = x; 3276b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[1] = y; 3277b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette transformPointToViewLocal(point, child); 3278b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette child.drawableHotspotChanged(point[0], point[1]); 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3283e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 3289d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette final Drawable d = mSelector.getCurrent(); 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32978390fab6f4c305e89e1eb32bbf82c74a55f79424Alan Viverette mSelector.setHotspot(x, y); 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3317c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private boolean startScrollIfNeeded(int x, int y, MotionEvent vtev) { 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 332078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 332396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if ((overscroll || distance > mTouchSlop) && 332496d62aff0f97557bc15de98e145d9345288d060cAdam Powell (getNestedScrollAxes() & SCROLL_AXIS_VERTICAL) == 0) { 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 332678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 332778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 332878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 332978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 333078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 333178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 333278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 333574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 334213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 334313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 334413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 334513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 3346c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded(x, y, vtev); 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3353c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell private void scrollIfNeeded(int x, int y, MotionEvent vtev) { 335496d62aff0f97557bc15de98e145d9345288d060cAdam Powell int rawDeltaY = y - mMotionY; 335543943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollOffsetCorrection = 0; 335643943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int scrollConsumedCorrection = 0; 335743943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee if (mLastY == Integer.MIN_VALUE) { 335843943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee rawDeltaY -= mMotionCorrection; 335943943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee } 3360e0e4217330fc3fa86046c284696df3b2d9785632Brian Attwell if (dispatchNestedPreScroll(0, mLastY != Integer.MIN_VALUE ? mLastY - y : -rawDeltaY, 3361e0e4217330fc3fa86046c284696df3b2d9785632Brian Attwell mScrollConsumed, mScrollOffset)) { 3362aab726c53e761752e506471408b28673387cd10fAdam Powell rawDeltaY += mScrollConsumed[1]; 3363fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell scrollOffsetCorrection = -mScrollOffset[1]; 3364fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell scrollConsumedCorrection = mScrollConsumed[1]; 336596d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (vtev != null) { 336696d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.offsetLocation(0, mScrollOffset[1]); 3367744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset += mScrollOffset[1]; 336896d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 336996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 337043943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee final int deltaY = rawDeltaY; 337143943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee int incrementalDeltaY = 3372e2e19391d422b6abb6abccb0e412debdf4a67716Yorke Lee mLastY != Integer.MIN_VALUE ? y - mLastY + scrollConsumedCorrection : deltaY; 337396d62aff0f97557bc15de98e145d9345288d060cAdam Powell int lastYCorrection = 0; 337478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 337678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 337778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 337878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 337978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 338078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 338378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 338478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 338578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 338678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 338878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 338978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 339078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 339178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 339278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 339378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 339478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 339578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 339678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 339778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 339878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 339978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 340078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 340178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 340278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 340378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 340478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 340578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 340678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 340778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 340878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 340978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 341078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 341178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 341278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 341378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 341478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 341578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 341678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 341778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 341878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 341978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 342078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 342178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 342278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 342378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 342478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 342578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 342678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 342778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 342878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 342978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 343078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 343178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 343296d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (dispatchNestedScroll(0, overscroll - incrementalDeltaY, 0, overscroll, 343396d62aff0f97557bc15de98e145d9345288d060cAdam Powell mScrollOffset)) { 343496d62aff0f97557bc15de98e145d9345288d060cAdam Powell lastYCorrection -= mScrollOffset[1]; 343511d0069f9228400943e9932e3286babb2b5f4135Adam Powell if (vtev != null) { 343611d0069f9228400943e9932e3286babb2b5f4135Adam Powell vtev.offsetLocation(0, mScrollOffset[1]); 3437744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset += mScrollOffset[1]; 343811d0069f9228400943e9932e3286babb2b5f4135Adam Powell } 343996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } else { 3440c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell final boolean atOverscrollEdge = overScrollBy(0, overscroll, 3441c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 0, mScrollY, 0, 0, 0, mOverscrollDistance, true); 3442c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 3443c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (atOverscrollEdge && mVelocityTracker != null) { 3444c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell // Don't allow overfling if we're at the edge 3445c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mVelocityTracker.clear(); 344678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 344778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 344896d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int overscrollMode = getOverScrollMode(); 344996d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 345096d62aff0f97557bc15de98e145d9345288d060cAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 345196d62aff0f97557bc15de98e145d9345288d060cAdam Powell !contentFits())) { 3452c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (!atOverscrollEdge) { 3453c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mDirection = 0; // Reset when entering overscroll. 3454c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3455c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } 3456c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (incrementalDeltaY > 0) { 34572897a6fdedd23efe96cd373886da78f1f1d18442Adam Powell mEdgeGlowTop.onPull((float) -overscroll / getHeight(), 3458c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 345996d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowBottom.isFinished()) { 346096d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowBottom.onRelease(); 346196d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3462c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 3463c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 3464c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell } else if (incrementalDeltaY < 0) { 3465c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight(), 3466c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 346796d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!mEdgeGlowTop.isFinished()) { 346896d62aff0f97557bc15de98e145d9345288d060cAdam Powell mEdgeGlowTop.onRelease(); 346996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 3470c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 3471c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 3472c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 347378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 347478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 347578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 347678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3477fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mMotionY = y + lastYCorrection + scrollOffsetCorrection; 347878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 347943943d8bbc628c7d6e0c3afe49e43161cbaf8b12Yorke Lee mLastY = y + lastYCorrection + scrollOffsetCorrection; 348078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 348178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 348278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 348378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 348478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 348578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 348678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 348778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 348878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 348978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 349078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 349178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 349278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 349378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 349478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 349578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 349678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 349778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 349878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 349978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 350078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 350178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 350278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 350378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 350478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 350578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 350678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 3507c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.onPull((float) overScrollDistance / getHeight(), 3508c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell (float) x / getWidth()); 350978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 351078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 351178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3512c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 3513c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 351478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 3515c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight(), 3516c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell 1.f - (float) x / getWidth()); 351778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 351878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 351978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3520c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 3521c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 3522c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 352378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 352478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 352578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 352678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 352778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 352878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 35299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 35309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 35319d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 353278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 353378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 35349d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 35359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 353678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 353778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 353878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 353978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 354078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 354178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 354278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 354378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 354478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 3545fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mMotionY = y + scrollOffsetCorrection; 354678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 354778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3548fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mLastY = y + lastYCorrection + scrollOffsetCorrection; 354978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 355078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 355178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 355278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 355378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 35548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35671e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35744032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35754032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35764032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 35800fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3590dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3591dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3592dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3593dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3594dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3595dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 35961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 35971fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 35981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 35991fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 3600462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 360128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 360228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 360328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 360428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 360528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 360628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 360728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 360896d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 360996d62aff0f97557bc15de98e145d9345288d060cAdam Powell 36108636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null) { 36118636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette boolean intercepted = mFastScroll.onTouchEvent(ev); 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 361682f3495b146b267f3786997752cef25310176349Romain Guy 361713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 361896d62aff0f97557bc15de98e145d9345288d060cAdam Powell final MotionEvent vtev = MotionEvent.obtain(ev); 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 3621744beffb6ae76d682c559970bb634722c835a32eAdam Powell if (actionMasked == MotionEvent.ACTION_DOWN) { 3622744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset = 0; 3623744beffb6ae76d682c559970bb634722c835a32eAdam Powell } 3624744beffb6ae76d682c559970bb634722c835a32eAdam Powell vtev.offsetLocation(0, mNestedYOffset); 36258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 36268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 36278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 36288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 363296d62aff0f97557bc15de98e145d9345288d060cAdam Powell onTouchMove(ev, vtev); 36338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36359d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 36368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 36378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 36388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3640e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 36428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 36438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3645e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 36468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 36478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 36488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 36498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 36508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 36518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 36528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 36538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 36548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 36558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 36568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 36588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3660fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 36618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 36628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 36638fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 36648fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 36658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 36668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 36678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 36688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 36698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 36708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 36718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 36728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 36738fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 36748fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 36758fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 36768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 36778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 36788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 36798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3680fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3681e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 368396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mVelocityTracker != null) { 368496d62aff0f97557bc15de98e145d9345288d060cAdam Powell mVelocityTracker.addMovement(vtev); 368596d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 368696d62aff0f97557bc15de98e145d9345288d060cAdam Powell vtev.recycle(); 3687e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3688e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3689e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3690e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 36913d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 36923d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 36933d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 36943d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3695e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3696e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3697e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3698e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3699e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3700e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 37013d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 37023d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3703e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3704e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 37053d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3706e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3707e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3708e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 37093d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3710e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 37113d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 37123d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 37133d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 37143d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 37153d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 37163d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 37173d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 37183d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 37193d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 37203d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 37213d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3722e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 37233d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3724e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3725e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3726e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3727e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37283d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3729d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.x = ev.getX(); 3730d1ca75bffef070f62ab70ed514f7f91824f73cbcAlan Viverette mPendingCheckForTap.y = ev.getY(); 3731e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3732e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37332585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 37346f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3735e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3736e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 37373d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3738e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 37396f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 37403d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3741e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3742e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3743e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3744e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3745e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37466f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3747b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3748b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 37493d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3750e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3751e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3752e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 375396d62aff0f97557bc15de98e145d9345288d060cAdam Powell private void onTouchMove(MotionEvent ev, MotionEvent vtev) { 3754e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3755e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3756e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3757e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3758e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3759e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3760e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3761e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3762e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3763e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3764e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3765e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 37668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 37678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3768e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 37698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 37708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 37718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 37728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 377374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 3774c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, vtev)) { 377574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 377674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 377774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 377874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 3779b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 37803d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 37813d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 378274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 378374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 378474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 378574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 378674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 378774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 378874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 378974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 3790b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette } else if (motionView != null) { 3791b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Still within bounds, update the hotspot. 3792b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette final float[] point = mTmpPoint; 3793b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[0] = x; 3794b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette point[1] = y; 3795b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette transformPointToViewLocal(point, motionView); 3796b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette motionView.drawableHotspotChanged(point[0], point[1]); 379774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 37988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 37998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 38008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 3801c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell scrollIfNeeded((int) ev.getX(pointerIndex), y, vtev); 38028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3804e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3806e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3807e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3808e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3809e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3810e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3811e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3812e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 381374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3814e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3815e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3816e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3817e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 381874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 381974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 382074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 382174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 382274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 382374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3824e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 382574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 382674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 382774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 382974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 383174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 383274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3833e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 383474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 383574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 383674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 383774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 383874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 383974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 384074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 384174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 384274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 384374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 384474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 384574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3847c80ad99a33ee49d0bac994c1749ff24d243c3862Alan Viverette mSelector.setHotspot(x, ev.getY()); 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 384974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 385074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 385174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 385274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 385374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 385474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 385574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 385674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 385774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 385874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 3859462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (!mDataChanged && !mIsDetaching && isAttachedToWindow()) { 386074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 386174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 386274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 386374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 386474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 386574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 386674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 386774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 386874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 386974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 387074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 387174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 387274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3875e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3876e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3877e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3878e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3879e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3880e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3881e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3882e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3883e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3884e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3885e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3886e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3887e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3888e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3889e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3890e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3891e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3892e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3893e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3894e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3895e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3896e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3897e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3898e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3899e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3900e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3901aab726c53e761752e506471408b28673387cd10fAdam Powell boolean flingVelocity = Math.abs(initialVelocity) > mMinimumVelocity; 3902aab726c53e761752e506471408b28673387cd10fAdam Powell if (flingVelocity && 3903e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3904e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3905e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3906e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 39079413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (!dispatchNestedPreFling(0, -initialVelocity)) { 39089413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (mFlingRunnable == null) { 39099413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable = new FlingRunnable(); 39109413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } 39119413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 39129413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable.start(-initialVelocity); 39139413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell dispatchNestedFling(0, -initialVelocity, true); 39149413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } else { 39159413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mTouchMode = TOUCH_MODE_REST; 39169413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3917e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3918e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 39196198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 39206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3921e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3922e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3923e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3924e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3925e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 39266198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 3927fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell if (flingVelocity && !dispatchNestedPreFling(0, -initialVelocity)) { 3928aab726c53e761752e506471408b28673387cd10fAdam Powell dispatchNestedFling(0, -initialVelocity, false); 3929aab726c53e761752e506471408b28673387cd10fAdam Powell } 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3932e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3933e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3934e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3936e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3938e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3939e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3940e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3942e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3943e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3944e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3946e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3947e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3948e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3949e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3950e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3953e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3954e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3956e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3958e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3959e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3960e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3963e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3964e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 396574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3966e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3968e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3970e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3971e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3972e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3973e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3975e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3977e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3978e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3979e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 39804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3981e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 39824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3983e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3984e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3985e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3986e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3987e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 39884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3989e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 39904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39919bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3992e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3993e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 39949bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3995e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3996e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3997e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3998e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 399974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 4000e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 4001e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 4002e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 4003e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 400474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 4005e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4008e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 4009e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 4010e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 4011e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 4012e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40160a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 40170a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 40180a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 40190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 40200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 40210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 40220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 4023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 402733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 402833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 402933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 403033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 403133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 403233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 403333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 403433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 4035275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 403633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 403733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 403833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 403933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 404033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 404133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 404233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 404333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 404433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 404533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 40464884c642882af0a279673d7a95485069e58beb69Adam Powell /** 40474884c642882af0a279673d7a95485069e58beb69Adam Powell * Initiate a fling with the given velocity. 40484884c642882af0a279673d7a95485069e58beb69Adam Powell * 40494884c642882af0a279673d7a95485069e58beb69Adam Powell * <p>Applications can use this method to manually initiate a fling as if the user 40504884c642882af0a279673d7a95485069e58beb69Adam Powell * initiated it via touch interaction.</p> 40514884c642882af0a279673d7a95485069e58beb69Adam Powell * 4052fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell * @param velocityY Vertical velocity in pixels per second. Note that this is velocity of 4053fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell * content, not velocity of a touch that initiated the fling. 40544884c642882af0a279673d7a95485069e58beb69Adam Powell */ 40554884c642882af0a279673d7a95485069e58beb69Adam Powell public void fling(int velocityY) { 40564884c642882af0a279673d7a95485069e58beb69Adam Powell if (mFlingRunnable == null) { 40574884c642882af0a279673d7a95485069e58beb69Adam Powell mFlingRunnable = new FlingRunnable(); 40584884c642882af0a279673d7a95485069e58beb69Adam Powell } 40594884c642882af0a279673d7a95485069e58beb69Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4060fd1e93d128da9dbb2f97630c01239bb56199686eAdam Powell mFlingRunnable.start(velocityY); 40614884c642882af0a279673d7a95485069e58beb69Adam Powell } 40624884c642882af0a279673d7a95485069e58beb69Adam Powell 406333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 406496d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onStartNestedScroll(View child, View target, int nestedScrollAxes) { 406596d62aff0f97557bc15de98e145d9345288d060cAdam Powell return ((nestedScrollAxes & SCROLL_AXIS_VERTICAL) != 0); 406696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 406796d62aff0f97557bc15de98e145d9345288d060cAdam Powell 406896d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 406996d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScrollAccepted(View child, View target, int axes) { 407096d62aff0f97557bc15de98e145d9345288d060cAdam Powell super.onNestedScrollAccepted(child, target, axes); 407196d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 407296d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 407396d62aff0f97557bc15de98e145d9345288d060cAdam Powell 407496d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 407596d62aff0f97557bc15de98e145d9345288d060cAdam Powell public void onNestedScroll(View target, int dxConsumed, int dyConsumed, 407696d62aff0f97557bc15de98e145d9345288d060cAdam Powell int dxUnconsumed, int dyUnconsumed) { 407796d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int motionIndex = getChildCount() / 2; 407896d62aff0f97557bc15de98e145d9345288d060cAdam Powell final View motionView = getChildAt(motionIndex); 407996d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int oldTop = motionView != null ? motionView.getTop() : 0; 408096d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView == null || trackMotionScroll(-dyUnconsumed, -dyUnconsumed)) { 408196d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myUnconsumed = dyUnconsumed; 408296d62aff0f97557bc15de98e145d9345288d060cAdam Powell int myConsumed = 0; 408396d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (motionView != null) { 408496d62aff0f97557bc15de98e145d9345288d060cAdam Powell myConsumed = motionView.getTop() - oldTop; 408596d62aff0f97557bc15de98e145d9345288d060cAdam Powell myUnconsumed -= myConsumed; 408696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 408796d62aff0f97557bc15de98e145d9345288d060cAdam Powell dispatchNestedScroll(0, myConsumed, 0, myUnconsumed, null); 408896d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 408996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 409096d62aff0f97557bc15de98e145d9345288d060cAdam Powell 409196d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 409296d62aff0f97557bc15de98e145d9345288d060cAdam Powell public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) { 409396d62aff0f97557bc15de98e145d9345288d060cAdam Powell final int childCount = getChildCount(); 409496d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (!consumed && childCount > 0 && canScrollList((int) velocityY) && 409596d62aff0f97557bc15de98e145d9345288d060cAdam Powell Math.abs(velocityY) > mMinimumVelocity) { 409696d62aff0f97557bc15de98e145d9345288d060cAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 409796d62aff0f97557bc15de98e145d9345288d060cAdam Powell if (mFlingRunnable == null) { 409896d62aff0f97557bc15de98e145d9345288d060cAdam Powell mFlingRunnable = new FlingRunnable(); 409996d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 41009413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell if (!dispatchNestedPreFling(0, velocityY)) { 41019413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell mFlingRunnable.start((int) velocityY); 41029413b245a6e5264ce4e57c48a90ee96f914476e2Adam Powell } 410396d62aff0f97557bc15de98e145d9345288d060cAdam Powell return true; 410496d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 410596d62aff0f97557bc15de98e145d9345288d060cAdam Powell return dispatchNestedFling(velocityX, velocityY, consumed); 410696d62aff0f97557bc15de98e145d9345288d060cAdam Powell } 410796d62aff0f97557bc15de98e145d9345288d060cAdam Powell 410896d62aff0f97557bc15de98e145d9345288d060cAdam Powell @Override 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 4111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 4112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 4114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 41159be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell final int width = getWidth(); 4116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 41179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 41189be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell canvas.translate(0, edgeY); 4119a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 4121c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, 0, getWidth(), 4122c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowTop.getMaxHeight() + getPaddingTop()); 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 4127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 41289be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell final int width = getWidth(); 4129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 4130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 41319be22455ac2548dd822bdfa7e4091561eac67d57Adam Powell int edgeX = -width; 41329d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 41339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 4134e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 4135a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 4136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 4137c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell invalidate(0, getHeight() - getPaddingBottom() - 4138c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell mEdgeGlowBottom.getMaxHeight(), getWidth(), 4139c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell getHeight()); 4140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 414607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 414707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 414807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 414907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 415007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 415107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 415207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 415307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 415413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 415513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 415613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 415713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 415813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 415913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 416013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 416113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 416213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 416313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 416413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 416513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 416613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 416713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 416813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 416913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 417013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 417113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 417213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 417313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 417413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 417513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 417613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 417713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 417813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 417913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 418013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 418113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 418213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4184a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 41858636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptHoverEvent(event)) { 4186a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 4187a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4188a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4189a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 4190a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 4191a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 4192a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 4194744beffb6ae76d682c559970bb634722c835a32eAdam Powell final int actionMasked = ev.getActionMasked(); 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 41960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 41971fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 41981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 41991fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 42001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4201462c2177f73754458821cfc0441a863c1fa527e4Alan Viverette if (mIsDetaching || !isAttachedToWindow()) { 420228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 420328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 420428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 420528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 420628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 420728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 420828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 42098636ace69640566768f89c2d92d2851ff064a2e9Alan Viverette if (mFastScroll != null && mFastScroll.onInterceptTouchEvent(ev)) { 42100ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4213744beffb6ae76d682c559970bb634722c835a32eAdam Powell switch (actionMasked) { 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 421579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 4216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 4217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 4219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 42224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 42234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 42244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 422679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 423813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 423913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 4240744beffb6ae76d682c559970bb634722c835a32eAdam Powell mNestedYOffset = 0; 424196d62aff0f97557bc15de98e145d9345288d060cAdam Powell startNestedScroll(SCROLL_AXIS_VERTICAL); 424279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 42434b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 42444b4f40f84e72579417604143e5f42115769649b8Romain Guy } 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 42512585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 42522585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 42532585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 42542585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 42552585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 42564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 425713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 425813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 4259c501db9f44f7967961f0ba61a0b3b63055ac1190Adam Powell if (startScrollIfNeeded((int) ev.getX(pointerIndex), y, null)) { 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 426713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 42704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 427113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 427396d62aff0f97557bc15de98e145d9345288d060cAdam Powell stopNestedScroll(); 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 42784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 42794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 42804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 42874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 42884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 42894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 42904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 42914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 42924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 42934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 42944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 42954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 42964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 42984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 42994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 43004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 43350046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4357d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 43588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4359d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4360d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4361d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4363d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4364d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4365d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4366d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4367d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4368d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4369d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4370b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4371b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4372d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4373d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4374d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4375d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4376d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4377b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4378d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4379d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4380d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4381d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4382d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4383d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 438479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 438879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 43910b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 43951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 44041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 44051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 44061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 44131fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4416e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4417637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4418637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4419637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 44210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4422044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4423044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4424637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4425637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 44261fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4427637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4428637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4429637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4430637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4431637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4437637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4438637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4439637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4440637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 44414032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 44424032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 44434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 44444032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 44454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 44481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4449637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 44510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 44540b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 44571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4460d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 446379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4464d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 446521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 446621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 446721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4468d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 44695e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 44705e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 44715e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 44725e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 44735e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4474d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4475d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4476d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4477d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44808fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 448279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 448379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4484d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4487d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4488d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4489d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4490d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4491d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 44937f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 44947f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 44957f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 44967f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 449779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 449879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 449979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 450079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4526d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4530d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 45399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 45409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4541637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 45483cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 45493cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 45503cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4551637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 45559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 45571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4566d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4580044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4581044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4584044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4585044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4586044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4587044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4588044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4589044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4590044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4591044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4592044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4593044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4594044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4595044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 45981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The amount of friction applied to flings. The default value 4611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * is {@link ViewConfiguration#getScrollFriction}. 4612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setFriction(float friction) { 4614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.mScroller.setFriction(friction); 4618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets a scale factor for the fling velocity. The initial scale 4622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * factor is 1.0. 4623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scale The scale factor to multiply the velocity by. 4625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setVelocityScale(float scale) { 4627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mVelocityScale = scale; 4628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Override this for better control over position scrolling. 4632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsPositionScroller createPositionScroller() { 4634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new PositionScroller(); 4635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4636e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed. 4640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position) { 4643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position); 4647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Number of milliseconds to use for the scroll 4660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.startWithOffset(position, offset, duration); 4666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4669d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will scroll 4670d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * such that the indicated position is displayed <code>offset</code> pixels below 4671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the first or last item beyond the boundaries of the list) it will get as close 4673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * as possible. 4674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Position to scroll to 4676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param offset Desired distance in pixels of <code>position</code> from the top 4677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the view when scrolling is finished 4678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPositionFromTop(int position, int offset) { 4680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46833b415e41cc2be7ede25be203b447143c3f8c046bAlan Viverette mPositionScroller.startWithOffset(position, offset); 4684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 46854032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll to the specified adapter position. The view will 4688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scroll such that the indicated position is displayed, but it will 4689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * stop early if scrolling further would scroll boundPosition out of 4690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view. 4691cb23bce60ae8d2c75f8b2053a9da6b6b3880988eAlan Viverette * 4692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Scroll to this adapter position. 4693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param boundPosition Do not scroll if it would move this adapter 4694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * position out of view. 4695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollToPosition(int position, int boundPosition) { 4697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller == null) { 4698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller = createPositionScroller(); 4699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.start(position, boundPosition); 4701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4702aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Smoothly scroll by distance pixels over duration milliseconds. 4705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param distance Distance to scroll in pixels. 4706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param duration Duration of the scroll animation in milliseconds. 4707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void smoothScrollBy(int distance, int duration) { 4709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, false); 4710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4711e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollBy(int distance, int duration, boolean linear) { 4713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFlingRunnable == null) { 4714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable = new FlingRunnable(); 4715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No sense starting to scroll if we're not going anywhere 4718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 4719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount; 4721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int topLimit = getPaddingTop(); 4722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomLimit = getHeight() - getPaddingBottom(); 47234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (distance == 0 || mItemCount == 0 || childCount == 0 || 4725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette (lastPos == mItemCount && 4727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 4728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.endFling(); 4729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 4730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 4731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4734d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFlingRunnable.startScroll(distance, duration, linear); 4735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Allows RemoteViews to scroll relatively to a position. 4740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void smoothScrollByOffset(int position) { 4742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = -1; 4743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 4744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getFirstVisiblePosition(); 4745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > 0) { 4746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette index = getLastVisiblePosition(); 4747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47484032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index > -1) { 4750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(index - getFirstVisiblePosition()); 4751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child != null) { 4752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Rect visibleRect = new Rect(); 4753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getGlobalVisibleRect(visibleRect)) { 4754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the child is partially visible 4755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childRectArea = child.getWidth() * child.getHeight(); 4756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int visibleRectArea = visibleRect.width() * visibleRect.height(); 4757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette float visibleArea = (visibleRectArea / (float) childRectArea); 4758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float visibleThreshold = 0.75f; 4759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((position < 0) && (visibleArea < visibleThreshold)) { 4760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the top index is not perceivably visible so offset 4761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that top index as well 4762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ++index; 4763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the bottom index is not perceivably visible so offset 4765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to account for showing that bottom index as well 4766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette --index; 4767d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4768d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4769d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4771d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 47734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4774d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createScrollingCache() { 4775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 4776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(true); 4777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(true); 4778d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = true; 4779d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4780d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void clearScrollingCache() { 4783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isHardwareAccelerated()) { 4784d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mClearScrollingCache == null) { 4785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mClearScrollingCache = new Runnable() { 4786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 4787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 4788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mCachingStarted) { 4789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCachingStarted = mCachingActive = false; 4790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawnWithCacheEnabled(false); 4791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 4792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setChildrenDrawingCacheEnabled(false); 4793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isAlwaysDrawnWithCacheEnabled()) { 4795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4798aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4799161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4800e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette post(mClearScrollingCache); 4802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4803d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4804e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4805d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 4807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y the amount of pixels to scroll by vertically 4809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #canScrollList(int) 4810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void scrollListBy(int y) { 4812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette trackMotionScroll(-y, -y); 4813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 48144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction Negative to check scrolling up, positive to check 4819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrolling down. 4820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if the list can be scrolled in the specified direction, 4821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * false otherwise. 4822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see #scrollListBy(int) 4823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean canScrollList(int direction) { 4825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 4828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 48294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (direction > 0) { 4833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 4834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPosition = firstPosition + childCount; 4835d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 4836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4837d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 4839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4841e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 4843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Track a motion scroll 4844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 4845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 4846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * began. Positive numbers mean the user's finger is moving down the screen. 4847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param incrementalDeltaY Change in deltaY from the previous event. 4848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return true if we're already at the beginning/end of the list and have nothing to do. 4849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 4850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 4851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 4852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 4853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 4854322171b333a1c796fcc1428a96ea1d854a3881faErik } 4855322171b333a1c796fcc1428a96ea1d854a3881faErik 4856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstTop = getChildAt(0).getTop(); 4857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 48584032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final Rect listPadding = mListPadding; 4860aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // "effective padding" In this case is the amount of padding that affects 4862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // how much space should not be filled by items. If we don't clip to padding 4863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there is no effective padding. 4864d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingTop = 0; 4865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int effectivePaddingBottom = 0; 4866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingTop = listPadding.top; 4868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette effectivePaddingBottom = listPadding.bottom; 4869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4870aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // FIXME account for grid vertical spacing too? 4872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceAbove = effectivePaddingTop - firstTop; 4873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = getHeight() - effectivePaddingBottom; 4874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int spaceBelow = lastBottom - end; 48751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = getHeight() - mPaddingBottom - mPaddingTop; 4877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (deltaY < 0) { 4878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.max(-(height - 1), deltaY); 4879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette deltaY = Math.min(height - 1, deltaY); 4881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4882e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (incrementalDeltaY < 0) { 4884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 4885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 4887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4888e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPosition = mFirstPosition; 4890e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update our guesses for where the first and last views are 4892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition == 0) { 4893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess = firstTop - listPadding.top; 4894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPositionDistanceGuess += incrementalDeltaY; 4896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount == mItemCount) { 4898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastPositionDistanceGuess += incrementalDeltaY; 4901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4902234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollDown = (firstPosition == 0 && 4904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette firstTop >= listPadding.top && incrementalDeltaY >= 0); 4905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 4906d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 4907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (cannotScrollDown || cannotScrollUp) { 4909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return incrementalDeltaY != 0; 4910e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4911e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4912d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean down = incrementalDeltaY < 0; 4913e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean inTouchMode = isInTouchMode(); 4915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (inTouchMode) { 4916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette hideSelector(); 4917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4918e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int headerViewsCount = getHeaderViewsCount(); 4920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int footerViewsStart = mItemCount - getFooterViewsCount(); 4921e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int start = 0; 4923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = 0; 4924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 4925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int top = -incrementalDeltaY; 4927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette top += listPadding.top; 4929e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 4931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getBottom() >= top) { 4933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4935d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4940632af849240f54f91b2b4fde77d3a51c4d045f74Alan Viverette child.clearAccessibilityFocus(); 4941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4944e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int bottom = getHeight() - incrementalDeltaY; 4947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4948d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette bottom -= listPadding.bottom; 4949e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 4951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View child = getChildAt(i); 4952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (child.getTop() <= bottom) { 4953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 4954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 4955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start = i; 4956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette count++; 4957d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = firstPosition + i; 4958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= headerViewsCount && position < footerViewsStart) { 4959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The view will be rebound to new data, clear any 4960d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // system-managed transient state. 4961632af849240f54f91b2b4fde77d3a51c4d045f74Alan Viverette child.clearAccessibilityFocus(); 4962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(child, position); 4963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4964e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4965e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4966e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4967e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4968d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 4969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = true; 4971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 4973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette detachViewsFromParent(start, count); 4974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.removeSkippedScrap(); 4975d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 49764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // invalidate before moving the children to avoid unnecessary invalidate 4978d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // calls to bubble up from the children all the way to the top 4979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!awakenScrollBars()) { 4980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 4981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offsetChildrenTopAndBottom(incrementalDeltaY); 4984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (down) { 4986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstPosition += count; 4987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette fillGap(down); 4992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 4993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 4995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectedPosition - mFirstPosition; 4996d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 4997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(mSelectedPosition, getChildAt(childIndex)); 4998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mSelectorPosition != INVALID_POSITION) { 5000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childIndex = mSelectorPosition - mFirstPosition; 5001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childIndex >= 0 && childIndex < getChildCount()) { 5002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionSelector(INVALID_POSITION, getChildAt(childIndex)); 5003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorRect.setEmpty(); 5006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBlockLayoutRequests = false; 50094032252c997be9f5d013054dc23ace855007b3a5Adam Powell 5010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5011e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 5012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 5013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of header views in the list. Header views are special views 5017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the top of the list that should not be recycled during a layout. 5018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of header views, 0 in the default implementation. 50204bede9e425875542976a422222510fa4056a8339Romain Guy */ 5021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeaderViewsCount() { 5022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 50234bede9e425875542976a422222510fa4056a8339Romain Guy } 502421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 502521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 5026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the number of footer views in the list. Footer views are special views 5027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at the bottom of the list that should not be recycled during a layout. 50284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 5029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The number of footer views, 0 in the default implementation. 503021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 5031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getFooterViewsCount() { 5032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return 0; 503321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 50344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 50354bede9e425875542976a422222510fa4056a8339Romain Guy /** 5036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fills the gap left open by a touch-scroll. During a touch scroll, children that 5037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * remain on screen are shifted and the other ones are discarded. The role of this 5038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * method is to fill the gap thus created by performing a partial layout in the 5039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * empty space. 5040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param down true if the scroll is going down, false if it is going up 5042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void fillGap(boolean down); 5044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void hideSelector() { 5046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition != INVALID_POSITION) { 5047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLayoutMode != LAYOUT_SPECIFIC) { 5048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mSelectedPosition; 5049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 5051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = mNextSelectedPosition; 5052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectedPositionInt(INVALID_POSITION); 5054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(INVALID_POSITION); 5055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedTop = 0; 5056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5058322171b333a1c796fcc1428a96ea1d854a3881faErik 5059322171b333a1c796fcc1428a96ea1d854a3881faErik /** 5060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 5061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 5062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of items available in the adapter 5063322171b333a1c796fcc1428a96ea1d854a3881faErik */ 5064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int reconcileSelectedPosition() { 5065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position = mSelectedPosition; 5066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < 0) { 5067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = mResurrectToPosition; 5068322171b333a1c796fcc1428a96ea1d854a3881faErik } 5069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.max(0, position); 5070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = Math.min(position, mItemCount - 1); 5071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return position; 5072322171b333a1c796fcc1428a96ea1d854a3881faErik } 5073322171b333a1c796fcc1428a96ea1d854a3881faErik 5074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling 5076e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 5077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 5078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row containing y 5079e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 5080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract int findMotionRow(int y); 5081e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 5082e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 5083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Find the row closest to y. This row will be used as the motion row when scrolling. 5084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y Where the user touched 5086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The position of the first (or only) item in the row closest to y 5087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int findClosestMotionRow(int y) { 5089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 5091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return INVALID_POSITION; 5092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int motionRow = findMotionRow(y); 5095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 5099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Causes all the views to be rebuilt and redrawn. 5100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 5101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void invalidateViews() { 5102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 5103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 5104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 5105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invalidate(); 5106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5108499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If there is a selection returns false. 5110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Otherwise resurrects the selection and returns true if resurrected. 5111499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelectionIfNeeded() { 5113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && resurrectSelection()) { 5114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes the item at the supplied position selected. 51222f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 5123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the position of the new selection 51242f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 5125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette abstract void setSelectionInt(int position); 5126ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5127ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 5128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Attempt to bring the selection back if the user is switching from touch 5129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to trackball mode 5130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return Whether selection was set to something. 5131ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 5132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean resurrectSelection() { 5133ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 5134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount <= 0) { 5136ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 5137ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 5138ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedTop = 0; 5140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedPos; 5141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenTop = mListPadding.top; 5142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childrenBottom = mBottom - mTop - mListPadding.bottom; 5143ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 5144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int toPosition = mResurrectToPosition; 5145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean down = true; 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 5148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = toPosition; 5149bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 5150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View selected = getChildAt(selectedPos - mFirstPosition); 5151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = selected.getTop(); 5152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectedBottom = selected.getBottom(); 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are scrolled, don't get in the fade 5155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedTop < childrenTop) { 5156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenTop + getVerticalFadingEdgeLength(); 5157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (selectedBottom > childrenBottom) { 5158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = childrenBottom - selected.getMeasuredHeight() 5159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette - getVerticalFadingEdgeLength(); 5160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (toPosition < firstPosition) { 5163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Default to selecting whatever is first 5164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition; 5165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 5166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == 0) { 5170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remember the position of the first item 5171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we are scrolled at all 5173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition > 0 || top < childrenTop) { 5174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are scrolled, don't select anything that is 5175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // in the fade region 5176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenTop += getVerticalFadingEdgeLength(); 5177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (top >= childrenTop) { 5180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found a view whose top is fully visisble 5181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int itemCount = mItemCount; 5188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette down = false; 5189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + childCount - 1; 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = childCount - 1; i >= 0; i--) { 5192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = getChildAt(i); 5193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int top = v.getTop(); 5194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = v.getBottom(); 5195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (i == childCount - 1) { 5197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 5199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette childrenBottom -= getVerticalFadingEdgeLength(); 5200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom <= childrenBottom) { 5204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = firstPosition + i; 5205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedTop = top; 5206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(mFlingRunnable); 5214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 5215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 5216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTouchMode = TOUCH_MODE_REST; 5218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearScrollingCache(); 5219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = selectedTop; 5220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = lookForSelectablePosition(selectedPos, down); 5221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 5222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 5223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette updateSelectorState(); 5224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setSelectionInt(selectedPos); 5225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette invokeOnItemScrollListener(); 5226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectedPos = INVALID_POSITION; 5228029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return selectedPos >= 0; 5232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void confirmCheckedPositionsById() { 5235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Clear out the positional check states, we'll rebuild it below from IDs. 5236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.clear(); 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean checkedCountChanged = false; 5239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 5240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long id = mCheckedIdStates.keyAt(checkedIndex); 5241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 5242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long lastPosId = mAdapter.getItemId(lastPos); 5244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id != lastPosId) { 5245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Look around to see if the ID is nearby. If not, uncheck it. 5246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 5247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 5248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean found = false; 5249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int searchPos = start; searchPos < end; searchPos++) { 5250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final long searchId = mAdapter.getItemId(searchPos); 5251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (id == searchId) { 5252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette found = true; 5253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(searchPos, true); 5254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.setValueAt(checkedIndex, searchPos); 5255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!found) { 5260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedIdStates.delete(id); 5261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedIndex--; 5262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckedItemCount--; 5263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkedCountChanged = true; 5264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 5265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 5266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastPos, id, false); 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCheckStates.put(lastPos, true); 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (checkedCountChanged && mChoiceActionMode != null) { 5275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode.invalidate(); 52769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 5277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 52789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void handleDataChanged() { 5281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int count = mItemCount; 5282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int lastHandledItemCount = mLastHandledItemCount; 5283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastHandledItemCount = mItemCount; 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 5286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette confirmCheckedPositionsById(); 5287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 52884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: In the future we can recycle these views based on stable ID instead. 5290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.clearTransientStateViews(); 5291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (count > 0) { 5293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int newPos; 5294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int selectablePos; 5295029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Find the row we are supposed to sync to 5297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 5298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Update this first, since setNextSelectedPositionInt inspects it 5299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 5303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mForceTranscriptScroll) { 5307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mForceTranscriptScroll = false; 5308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 5312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listBottom = getHeight() - getPaddingBottom(); 5313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastChild = getChildAt(childCount - 1); 5314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFirstPosition + childCount >= lastHandledItemCount && 5316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lastBottom <= listBottom) { 5317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_FORCE_BOTTOM; 5318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Something new came in and we didn't scroll; give the user a clue that 5321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // there's something new. 5322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette awakenScrollBars(); 5323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mSyncMode) { 5326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_SELECTED_POSITION: 5327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isInTouchMode()) { 5328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We saved our state when not in touch mode. (We know this because 5329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 5330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // restore in touch mode. Just leave mSyncPosition as it is (possibly 5331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // adjusting if the available range changed) and return. 5332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // See if we can find a position in the new data with the same 5338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // id as the old selection. This will change mSyncPosition. 5339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = findSyncPosition(); 5340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= 0) { 5341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Found it. Now verify that new selection is still selectable 5342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos == newPos) { 5344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Same row id is selected 5345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = newPos; 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSyncHeight == getHeight()) { 5348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If we are at the same height as when we saved state, try 5349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to restore the scroll position too. 5350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We are not the same height as when the selection was saved, so 5353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // don't try to restore the exact position 5354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SET_SELECTION; 5355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Restore selection 5358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(newPos); 5359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case SYNC_FIRST_POSITION: 5365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Leave mSyncPosition as it is -- just pin to available range 5366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SYNC; 5367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5371ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 5372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 5374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We couldn't find matching data -- try to use the same position 5375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = getSelectedItemPosition(); 5376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pin position to the available range 5378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos >= count) { 5379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = count - 1; 5380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (newPos < 0) { 5382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette newPos = 0; 5383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we select something selectable -- first look down 5386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, true); 5387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Looking down didn't work -- try looking up 5393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette selectablePos = lookForSelectablePosition(newPos, false); 5394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (selectablePos >= 0) { 5395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(selectablePos); 5396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // We already know where we want to resurrect the selection 5402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mResurrectToPosition >= 0) { 5403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 5404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Nothing is selected. Give up and reset everything. 5410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 5411d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedPosition = INVALID_POSITION; 5412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectedRowId = INVALID_ROW_ID; 5413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedPosition = INVALID_POSITION; 5414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNextSelectedRowId = INVALID_ROW_ID; 5415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mNeedSync = false; 5416d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPendingSync = null; 5417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSelectorPosition = INVALID_POSITION; 5418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkSelectionChanged(); 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected void onDisplayHint(int hint) { 5423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onDisplayHint(hint); 5424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (hint) { 5425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case INVISIBLE: 5426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case VISIBLE: 5431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing()) { 5432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopupHidden = hint == INVISIBLE; 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Removes the filter window 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void dismissPopup() { 5443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null) { 5444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.dismiss(); 5445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5446d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Shows the filter window 5450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void showPopup() { 5452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we have a window before showing the popup 5453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getWindowVisibility() == View.VISIBLE) { 5454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette positionPopup(); 5456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Make sure we get focus if we are showing the popup 5457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette checkFocus(); 5458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void positionPopup() { 5462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int screenHeight = getResources().getDisplayMetrics().heightPixels; 5463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int[] xy = new int[2]; 5464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getLocationOnScreen(xy); 5465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: The 20 below should come from the theme 5466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // TODO: And the gravity should be defined in the theme as well 5467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!mPopup.isShowing()) { 5469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 5470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette xy[0], bottomGap); 5471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.update(xy[0], bottomGap, -1, -1); 5473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54758fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 54764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 5477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * What is the distance between the source and destination rectangles given the direction of 5478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * focus navigation between them? The direction basically helps figure out more quickly what is 5479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * self evident by the relationship between the rects... 5480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param source the source rectangle 5482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param dest the destination rectangle 5483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param direction the direction 5484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return the distance between the rectangles 54854e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 5486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static int getDistance(Rect source, Rect dest, int direction) { 5487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int sX, sY; // source x, y 5488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int dX, dY; // dest x, y 5489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (direction) { 5490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_RIGHT: 5491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right; 5492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left; 5494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_DOWN: 5497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.bottom; 5499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top; 5501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_LEFT: 5503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left; 5504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.right; 5506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_UP: 5509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.left + source.width() / 2; 5510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top; 5511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.bottom; 5513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_FORWARD: 5515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case View.FOCUS_BACKWARD: 5516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sX = source.right + source.width() / 2; 5517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette sY = source.top + source.height() / 2; 5518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dX = dest.left + dest.width() / 2; 5519d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dY = dest.top + dest.height() / 2; 5520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 5522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("direction must be one of " 5523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 5524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55254e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 5526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaX = dX - sX; 5527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int deltaY = dY - sY; 5528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return deltaY * deltaY + deltaX * deltaX; 5529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean isInFilterMode() { 5533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 55344e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sends a key to the text filter window 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param keyCode The keycode for the event 5540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param event The actual key event 5541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return True if the text filter handled the event, false otherwise. 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!acceptFilter()) { 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean handled = false; 5550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean okToSend = true; 5551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (keyCode) { 5552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_UP: 5553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_DOWN: 5554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_LEFT: 5555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_RIGHT: 5556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_DPAD_CENTER: 5557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_ENTER: 5558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_BACK: 5561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && mPopup.isShowing()) { 5562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (event.getAction() == KeyEvent.ACTION_DOWN 5563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.getRepeatCount() == 0) { 5564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent.DispatcherState state = getKeyDispatcherState(); 5565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (state != null) { 5566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette state.startTracking(event, this); 5567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (event.getAction() == KeyEvent.ACTION_UP 5570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette && event.isTracking() && !event.isCanceled()) { 5571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = true; 5572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setText(""); 5573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = false; 5576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.KEYCODE_SPACE: 5578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Only send spaces once we are filtered 5579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette okToSend = mFiltered; 5580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 5581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (okToSend) { 5584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette KeyEvent forwardEvent = event; 5587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (forwardEvent.getRepeatCount() > 0) { 5588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int action = event.getAction(); 5592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (action) { 5593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_DOWN: 5594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 5595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_UP: 5598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 5599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case KeyEvent.ACTION_MULTIPLE: 5602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette handled = mTextFilter.onKeyMultiple(keyCode, count, event); 5603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return handled; 5607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Return an InputConnection for editing of the filter text. 5611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isTextFilterEnabled()) { 5615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPublicInputConnection == null) { 5616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDefInputConnection = new BaseInputConnection(this, false); 5617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPublicInputConnection = new InputConnectionWrapper(outAttrs); 5618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 5620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 5621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mPublicInputConnection; 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private class InputConnectionWrapper implements InputConnection { 5627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final EditorInfo mOutAttrs; 5628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection mTarget; 562914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public InputConnectionWrapper(EditorInfo outAttrs) { 5631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOutAttrs = outAttrs; 5632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 563314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private InputConnection getTarget() { 5635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) { 5636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget; 5639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 564014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean reportFullscreenMode(boolean enabled) { 5643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since it is 5644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the "real" one the IME is talking with. 5645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.reportFullscreenMode(enabled); 5646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 5648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performEditorAction(int editorAction) { 5650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The editor is off in its own window; we need to be 5651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the one that does this. 5652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (editorAction == EditorInfo.IME_ACTION_DONE) { 5653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette InputMethodManager imm = (InputMethodManager) 5654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (imm != null) { 5656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette imm.hideSoftInputFromWindow(getWindowToken(), 0); 565714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 565914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 5660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 566114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 566214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5663d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean sendKeyEvent(KeyEvent event) { 5665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Use our own input connection, since the filter 5666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // text view may not be shown in a window so has 5667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // no ViewAncestor to dispatch events with. 5668d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mDefInputConnection.sendKeyEvent(event); 566914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 567014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 5671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5672d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextBeforeCursor(int n, int flags) { 5673d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextBeforeCursor(n, flags); 5675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getTextAfterCursor(int n, int flags) { 5679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getTextAfterCursor(n, flags); 568114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public CharSequence getSelectedText(int flags) { 5685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return ""; 5686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getSelectedText(flags); 5687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5688539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public int getCursorCapsMode(int reqModes) { 5691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5692d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget.getCursorCapsMode(reqModes); 5693d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().getExtractedText(request, flags); 5698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().deleteSurroundingText(beforeLength, afterLength); 5703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5705d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingText(CharSequence text, int newCursorPosition) { 5707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingText(text, newCursorPosition); 5708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setComposingRegion(int start, int end) { 5712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setComposingRegion(start, end); 5713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean finishComposingText() { 5717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTarget == null || mTarget.finishComposingText(); 5718d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitText(CharSequence text, int newCursorPosition) { 5722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitText(text, newCursorPosition); 5723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCompletion(CompletionInfo text) { 5727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCompletion(text); 5728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean commitCorrection(CorrectionInfo correctionInfo) { 5732d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().commitCorrection(correctionInfo); 5733d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean setSelection(int start, int end) { 5737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().setSelection(start, end); 5738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performContextMenuAction(int id) { 5742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performContextMenuAction(id); 5743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean beginBatchEdit() { 5747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().beginBatchEdit(); 5748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean endBatchEdit() { 5752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().endBatchEdit(); 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean clearMetaKeyStates(int states) { 5757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().clearMetaKeyStates(states); 5758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean performPrivateCommand(String action, Bundle data) { 5762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return getTarget().performPrivateCommand(action, data); 576343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 57640023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa 57650023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa @Override 5766d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa public boolean requestCursorUpdates(int cursorUpdateMode) { 5767d8636ea7ca78df83d6b04088eab7853f15f3e999Yohei Yukawa return getTarget().requestCursorUpdates(cursorUpdateMode); 57680023d0e0c4f5339b299d1eacbd4e7181c2fd271fYohei Yukawa } 576943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 577043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5772d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For filtering we proxy an input connection to an internal text editor, 5773d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * and this allows the proxying to happen. 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5775d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5776d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean checkInputConnectionProxy(View view) { 5777d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view == mTextFilter; 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5781d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Creates the window for the text filter and populates it with an EditText field; 5782d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 5783d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param animateEntrance true if the window should appear with an animation 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5785d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void createTextFilter(boolean animateEntrance) { 5786d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup == null) { 5787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PopupWindow p = new PopupWindow(getContext()); 5788d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setFocusable(false); 5789d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setTouchable(false); 5790d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5791d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setContentView(getTextFilterInput()); 5792d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setWidth(LayoutParams.WRAP_CONTENT); 5793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setHeight(LayoutParams.WRAP_CONTENT); 5794d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette p.setBackgroundDrawable(null); 5795d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup = p; 5796d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getViewTreeObserver().addOnGlobalLayoutListener(this); 5797d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mGlobalLayoutListenerAddedFilter = true; 5798d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5799d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (animateEntrance) { 5800d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 5801d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5802d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5806d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private EditText getTextFilterInput() { 5807d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTextFilter == null) { 5808d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5809d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter = (EditText) layoutInflater.inflate( 5810d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette com.android.internal.R.layout.typing_filter, null); 5811d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // For some reason setting this as the "real" input type changes 5812d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the text view in some way that it doesn't work, and I don't 5813d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // want to figure out why this is. 5814d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5816d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTextFilter.addTextChangedListener(this); 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5819d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mTextFilter; 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clear the text filter. 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void clearTextFilter() { 5826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered) { 5827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette getTextFilterInput().setText(""); 5828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5836d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns if the ListView currently has a text filter. 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5838d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasTextFilter() { 5839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mFiltered; 5840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onGlobalLayout() { 5844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (isShown()) { 5845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the popup if we are filtered 5846d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 5847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5850d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Hide the popup when we are no longer visible 5851d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPopup != null && mPopup.isShowing()) { 5852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5856d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5859d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5860d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void beforeTextChanged(CharSequence s, int start, int count, int after) { 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Performs 5868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the actual filtering as the text changes, and takes care of hiding and 5869d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * showing the popup displaying the currently entered filter text. 5870b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5871b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5872d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onTextChanged(CharSequence s, int start, int before, int count) { 5873c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5874d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette createTextFilter(true); 5875d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int length = s.length(); 5876d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean showing = mPopup.isShowing(); 5877d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!showing && length > 0) { 5878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Show the filter popup if necessary 5879d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette showPopup(); 5880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = true; 5881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (showing && length == 0) { 5882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove the filter popup if the user has cleared all text 5883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette dismissPopup(); 5884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFiltered = false; 5885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter instanceof Filterable) { 5887d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Filter f = ((Filterable) mAdapter).getFilter(); 5888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Filter should not be null when we reach this part 5889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (f != null) { 5890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette f.filter(s, this); 5891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 5892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalStateException("You cannot call onTextChanged with a non " 5893d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette + "filterable adapter"); 5894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 58951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5896c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5897b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 58980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5899d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * For our text watcher that is associated with the text filter. Does 5901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * nothing. 5902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 5903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void afterTextChanged(Editable s) { 5905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5906f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5908d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onFilterComplete(int count) { 5909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSelectedPosition < 0 && count > 0) { 5910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = INVALID_POSITION; 5911d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette resurrectSelection(); 5912f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5914f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5916d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5920f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 5923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new LayoutParams(p); 5924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5925f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5926d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams generateLayoutParams(AttributeSet attrs) { 5928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return new AbsListView.LayoutParams(getContext(), attrs); 5929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 5930f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 5932d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 5933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return p instanceof AbsListView.LayoutParams; 5934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59675be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 59685be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 59695be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 59705be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 59715be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 597652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 597752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 597852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 597952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 598052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 598152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 598252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 598352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59927b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5997d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 5998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views (excluding headers and footers) held by this AbsListView into the supplied 5999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * List. This includes views displayed on the screen as well as views stored in AbsListView's 6000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * internal view recycler. 6001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param views A list into which to put the reclaimed views 6003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void reclaimViews(List<View> views) { 6005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int childCount = getChildCount(); 6006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette RecyclerListener listener = mRecycler.mRecyclerListener; 6007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Reclaim views on screen 6009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't reclaim header or footer views, or views that should be ignored 6013d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 6014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.add(child); 6015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette child.setAccessibilityDelegate(null); 6016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (listener != null) { 6017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Pretend they went through the scrap heap 6018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette listener.onMovedToScrapHeap(child); 6019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6022d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.reclaimScrapViews(views); 6023d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeAllViewsInLayout(); 6024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6026d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void finishGlows() { 6027d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mEdgeGlowTop != null) { 6028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowTop.finish(); 6029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mEdgeGlowBottom.finish(); 6030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6032d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * through the specified intent. 6036d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6038d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsAdapter(Intent intent) { 6039d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 6041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 6043d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Intent.FilterComparison fcOld = new Intent.FilterComparison( 6044d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.getRemoteViewsServiceIntent()); 6045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (fcNew.equals(fcOld)) { 6046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6048d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 6050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, create a new RemoteViewsAdapter for binding 6051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter.isDataReady()) { 6053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 6054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6058d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 6059d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param handler The OnClickHandler to use when inflating RemoteViews. 6061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6064d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6065d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // service handling the specified intent. 6067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 6074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * connected yet. 6075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void deferNotifyDataSetChanged() { 6078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = true; 6079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6082d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter connects to the RemoteViewsService. 6083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onRemoteAdapterConnected() { 6086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != mAdapter) { 6087d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setAdapter(mRemoteAdapter); 6088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDeferNotifyDataSetChanged) { 6089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.notifyDataSetChanged(); 6090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDeferNotifyDataSetChanged = false; 6091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mRemoteAdapter != null) { 6094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.superNotifyDataSetChanged(); 6095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6096d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6097d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6098d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6101d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called back when the adapter disconnects from the RemoteViewsService. 6102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onRemoteAdapterDisconnected() { 6105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the remote adapter disconnects, we keep it around 6106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // since the currently displayed items are still cached. 6107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Further, we want the service to eventually reconnect 6108d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // when necessary, as triggered by this view requesting 6109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // items from the Adapter. 6110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * being displayed by the AbsListView. 6115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6116d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setVisibleRangeHint(int start, int end) { 6117d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRemoteAdapter != null) { 6118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRemoteAdapter.setVisibleRangeHint(start, end); 6119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6122d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the recycler listener to be notified whenever a View is set aside in 6124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * the recycler for later reuse. This listener can be used to free resources 6125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to the View. 6126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param listener The recycler listener to be notified of views set aside 6128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * in the recycler. 6129d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6133d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setRecyclerListener(RecyclerListener listener) { 6134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.mRecyclerListener = listener; 6135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6139d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onChanged() { 6140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onChanged(); 6141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6146d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6147d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onInvalidated() { 6148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super.onInvalidated(); 6149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mFastScroll != null) { 6150d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFastScroll.onSectionsChanged(); 6151d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6155d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6156d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * selects and deselects list items. 6160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6161d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public interface MultiChoiceModeListener extends ActionMode.Callback { 6162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Called when an item is checked or unchecked during selection mode. 6164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param mode The {@link ActionMode} providing the selection mode 6166d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Adapter position of the item that was checked or unchecked 6167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param id Adapter ID of the item that was checked or unchecked 6168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param checked <code>true</code> if the item is now checked, <code>false</code> 6169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * if the item is now unchecked. 6170d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked); 6173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6176d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private MultiChoiceModeListener mWrapped; 6177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setWrapped(MultiChoiceModeListener wrapped) { 6179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped = wrapped; 6180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean hasWrappedCallback() { 6183d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped != null; 6184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6186d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mWrapped.onCreateActionMode(mode, menu)) { 6189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Initialize checked graphic state? 6190d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(false); 6191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return true; 6192d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6193d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return false; 6194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6197d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onPrepareActionMode(mode, menu); 6199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6201d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6203d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return mWrapped.onActionItemClicked(mode, item); 6204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onDestroyActionMode(ActionMode mode) { 6208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onDestroyActionMode(mode); 6209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mChoiceActionMode = null; 6210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Ending selection mode means deselecting everything. 6212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearChoices(); 6213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mDataChanged = true; 6215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette rememberSyncState(); 6216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setLongClickable(true); 6219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void onItemCheckedStateChanged(ActionMode mode, 6223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int position, long id, boolean checked) { 6224d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6225d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If there are no items selected we no longer need the selection mode. 6227d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (getCheckedItemCount() == 0) { 6228d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mode.finish(); 6229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6234d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * AbsListView extends LayoutParams to provide a place to hold the view type. 6235d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static class LayoutParams extends ViewGroup.LayoutParams { 6237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * View type for this view, as returned by 6239d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * {@link android.widget.Adapter#getItemViewType(int) } 6240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list", mapping = { 6242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 6243d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 6244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }) 6245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewType; 6246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When this boolean is set, the view has been added to the AbsListView 6249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * at least once. It is used to know whether headers/footers have already 6250d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * been added to the list view and whether they should be treated as 6251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * recycled views or not. 6252d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean recycledHeaderFooter; 6255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * When an AbsListView is measured with an AT_MOST measure spec, it needs 6258d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * to obtain children views to measure itself. When doing so, the children 6259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * are not attached to the window, but put in the recycler which assumes 6260d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * they've been attached before. Setting this flag will force the reused 6261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view to be attached to the window rather than just attached to the 6262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * parent. 6263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @ViewDebug.ExportedProperty(category = "list") 6265d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boolean forceAdd; 6266d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position the view was removed from when pulled out of the 6269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * scrap heap. 6270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @hide 6271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrappedFromPosition; 6273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The ID the view represents 6276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long itemId = -1; 6278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(Context c, AttributeSet attrs) { 6280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(c, attrs); 6281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h) { 6284d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6285d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(int w, int h, int viewType) { 6288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(w, h); 6289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette this.viewType = viewType; 6290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6292d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public LayoutParams(ViewGroup.LayoutParams source) { 6293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette super(source); 6294d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6298d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * A RecyclerListener is used to receive a notification whenever a View is placed 6299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * inside the RecycleBin's scrap heap. This listener is used to free resources 6300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated to Views placed in the RecycleBin. 6301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecycleBin 6303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6305d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public static interface RecyclerListener { 6306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Indicates that the specified View was moved into the recycler's scrap heap. 6308d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The view is not displayed on screen any more and any expensive resource 6309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * associated with the view should be discarded. 6310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param view 6312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void onMovedToScrapHeap(View view); 6314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 6318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 6319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * start of a layout. By construction, they are displaying current information. At the end of 6320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 6321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * could potentially be used by the adapter to avoid allocating views unnecessarily. 6322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 6324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @see android.widget.AbsListView.RecyclerListener 6325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class RecycleBin { 6327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private RecyclerListener mRecyclerListener; 6328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6329d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6330d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * The position of the first view stored in mActiveViews. 6331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mFirstActivePosition; 6333d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6334d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6335d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views that were on screen at the start of layout. This array is populated at the start of 6336d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 6337d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Views in mActiveViews represent a contiguous range of Views, with position of the first 6338d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * view store in mFirstActivePosition. 6339d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6340d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private View[] mActiveViews = new View[0]; 6341d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6342d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6343d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Unsorted views that can be used by the adapter as a convert view. 6344d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6345d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View>[] mScrapViews; 6346d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6347d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mViewTypeCount; 6348d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6349d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mCurrentScrap; 6350d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6351d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private ArrayList<View> mSkippedScrap; 6352d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6353d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private SparseArray<View> mTransientStateViews; 6354d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private LongSparseArray<View> mTransientStateViewsById; 6355d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6356d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setViewTypeCount(int viewTypeCount) { 6357d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTypeCount < 1) { 6358d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 6359d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6360d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection unchecked 6361d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 6362d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; i++) { 6363d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews[i] = new ArrayList<View>(); 6364d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6365d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mViewTypeCount = viewTypeCount; 6366d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap = scrapViews[0]; 6367d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews = scrapViews; 6368d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6369d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6370d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void markChildrenDirty() { 6371d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6372d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6373d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6374d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6375d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).forceLayout(); 6376d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6377d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6378d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6379d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6380d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6381d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6382d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6383d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).forceLayout(); 6384d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6385d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6386d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6387d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6388d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViews.size(); 6389d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6390d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.valueAt(i).forceLayout(); 6391d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6392d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6393d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById != null) { 6394d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mTransientStateViewsById.size(); 6395d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6396d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.valueAt(i).forceLayout(); 6397d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6398d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6399d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6400d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6401d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public boolean shouldRecycleViewType(int viewType) { 6402d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return viewType >= 0; 6403d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6404d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6405d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6406d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Clears the scrap heap. 6407d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6408d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clear() { 6409d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6410d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 64113e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6412d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6413d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6414d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6415d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 64163e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearScrap(scrap); 6417d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6418d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6419d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6420d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette clearTransientStateViews(); 6421d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6422d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6423d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6424d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Fill ActiveViews with all of the children of the AbsListView. 6425d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6426d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param childCount The minimum number of views mActiveViews should hold 6427d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param firstActivePosition The position of the first view that will be stored in 6428d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews 6429d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6430d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void fillActiveViews(int childCount, int firstActivePosition) { 6431d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mActiveViews.length < childCount) { 6432d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mActiveViews = new View[childCount]; 6433d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6434d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mFirstActivePosition = firstActivePosition; 6435d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6436d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette //noinspection MismatchedReadAndWriteOfArray 6437d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6438d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < childCount; i++) { 6439d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View child = getChildAt(i); 6440d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 6441d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't put header or footer views into the scrap heap 6442d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6443d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 6444d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // However, we will NOT place them into scrap views. 6445d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = child; 6446b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette // Remember the position so that setupChild() doesn't reset state. 6447b942b6f15c51c2ff48c59d8f620ee6156d00f67eAlan Viverette lp.scrappedFromPosition = firstActivePosition + i; 6448d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6449d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6450d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6451d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6452d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6453d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Get the view corresponding to the specified position. The view will be removed from 6454d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews if it is found. 6455d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6456d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The position to look up in mActiveViews 6457d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return The view if it is found, null otherwise 6458d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6459d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getActiveView(int position) { 6460d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int index = position - mFirstActivePosition; 6461d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6462d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >=0 && index < activeViews.length) { 6463d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View match = activeViews[index]; 6464d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[index] = null; 6465d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return match; 6466d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6467d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6468d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6469d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6470d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getTransientStateView(int position) { 6471d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6472d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(position); 6473d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViewsById.get(id); 6474d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.remove(id); 6475d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6476d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6477d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews != null) { 6478d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = mTransientStateViews.indexOfKey(position); 6479d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0) { 6480d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View result = mTransientStateViews.valueAt(index); 6481d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.removeAt(index); 6482d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return result; 6483d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6484d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6485d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6486d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6487d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6488d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6489d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Dumps and fully detaches any currently saved views with transient 6490d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * state. 6491d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6492d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void clearTransientStateViews() { 6493d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> viewsByPos = mTransientStateViews; 6494d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsByPos != null) { 6495d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsByPos.size(); 6496d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6497d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsByPos.valueAt(i), false); 6498d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6499d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsByPos.clear(); 6500d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6501d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6502d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> viewsById = mTransientStateViewsById; 6503d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewsById != null) { 6504d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int N = viewsById.size(); 6505d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < N; i++) { 6506d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(viewsById.valueAt(i), false); 6507d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6508d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewsById.clear(); 6509d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6510d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6511d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6512d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6513d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return A view from the ScrapViews collection. These are unordered. 6514d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6515d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette View getScrapView(int position) { 6516d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6517d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mCurrentScrap, position); 6518d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 65193e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int whichScrap = mAdapter.getItemViewType(position); 6520d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6521d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return retrieveFromScrap(mScrapViews[whichScrap], position); 6522d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6523d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6524d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return null; 6525d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6526d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6527d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6528d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts a view into the list of scrap views. 6529d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * <p> 6530d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6531d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * with transient state will be preserved for later retrieval. 6532d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6533d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param scrap The view to add 6534d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position The view's position within its parent 6535d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6536d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void addScrapView(View scrap, int position) { 6537d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 6538d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lp == null) { 6539d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6540d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6541d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6542d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = position; 6543d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6544d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Remove but don't scrap header or footer views, or views that 6545d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // should otherwise not be recycled. 6546d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewType = lp.viewType; 6547d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!shouldRecycleViewType(viewType)) { 6548d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6549d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6550d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6551d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.dispatchStartTemporaryDetach(); 6552d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6553d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The the accessibility state of the view may change while temporary 6554d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // detached and we do not allow detached views to fire accessibility 6555d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // events. So we are announcing that the subtree changed giving a chance 6556d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // to clients holding on to a view in this subtree to refresh it. 6557d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette notifyViewAccessibilityStateChangedIfNeeded( 6558d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6559d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6560d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scrap views that have transient state. 6561d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean scrapHasTransientState = scrap.hasTransientState(); 6562d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrapHasTransientState) { 6563d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6564d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the adapter has stable IDs, we can reuse the view for 6565d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // the same data. 6566d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6567d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6568d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6569d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6570d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6571d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // If the data hasn't changed, we can reuse the views at 6572d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // their old positions. 6573d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6574d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6575d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6576d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(position, scrap); 6577d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6578d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Otherwise, we'll have to remove the view and start over. 6579d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6580d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap = new ArrayList<View>(); 6581d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6582d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.add(scrap); 6583d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6584d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6585d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6586d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mCurrentScrap.add(scrap); 6587d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6588d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrapViews[viewType].add(scrap); 6589d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6590d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6591d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mRecyclerListener != null) { 6592d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6593d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6594d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6595d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6596d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6597d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6598d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Finish the removal of any views that skipped the scrap heap. 6599d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6600d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void removeSkippedScrap() { 6601d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mSkippedScrap == null) { 6602d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6603d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6604d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = mSkippedScrap.size(); 6605d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; i++) { 6606d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(mSkippedScrap.get(i), false); 6607d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6608d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSkippedScrap.clear(); 6609d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6610d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6611d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6612d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Move all views remaining in mActiveViews to mScrapViews. 6613d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6614d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void scrapActiveViews() { 6615d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6616d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean hasListener = mRecyclerListener != null; 6617d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final boolean multipleScraps = mViewTypeCount > 1; 6618d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6619d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ArrayList<View> scrapViews = mCurrentScrap; 6620d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6621d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = count - 1; i >= 0; i--) { 6622d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6623d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6624d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final AbsListView.LayoutParams lp 6625d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette = (AbsListView.LayoutParams) victim.getLayoutParams(); 6626d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int whichScrap = lp.viewType; 6627d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6628d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette activeViews[i] = null; 6629d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6630d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim.hasTransientState()) { 6631d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store views with transient state for later use. 6632d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6633d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6634d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6635d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViewsById == null) { 6636d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6637d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6638d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette long id = mAdapter.getItemId(mFirstActivePosition + i); 6639d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViewsById.put(id, victim); 6640d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!mDataChanged) { 6641d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTransientStateViews == null) { 6642d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews = new SparseArray<View>(); 6643d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6644d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTransientStateViews.put(mFirstActivePosition + i, victim); 6645d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6646d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // The data has changed, we can't keep this view. 6647d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6648d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6649d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (!shouldRecycleViewType(whichScrap)) { 6650d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Discard non-recyclable views except headers/footers. 6651d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 6652d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(victim, false); 6653d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6654d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6655d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Store everything else on the appropriate scrap heap. 6656d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (multipleScraps) { 6657d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews = mScrapViews[whichScrap]; 6658d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6659d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6660d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.dispatchStartTemporaryDetach(); 6661d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette lp.scrappedFromPosition = mFirstActivePosition + i; 6662d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrapViews.add(victim); 66639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6664d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (hasListener) { 6665d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecyclerListener.onMovedToScrapHeap(victim); 6666d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6667d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6671d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette pruneScrapViews(); 6672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 6674d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6675d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Makes sure that the size of mScrapViews does not exceed the size of 6676d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * mActiveViews, which can happen if an adapter does not recycle its 6677d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * views. Removes cached transient state views that no longer have 6678d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * transient state. 6679d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6680d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void pruneScrapViews() { 6681d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int maxViews = mActiveViews.length; 6682d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6683d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6684d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6685d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6686d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int size = scrapPile.size(); 6687d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extras = size - maxViews; 6688d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette size--; 6689d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < extras; j++) { 6690d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(scrapPile.remove(size--), false); 6691d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 66923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 6693499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6694d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final SparseArray<View> transViewsByPos = mTransientStateViews; 6695d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsByPos != null) { 6696d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsByPos.size(); i++) { 6697d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsByPos.valueAt(i); 6698d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6699d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6700d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsByPos.removeAt(i); 6701d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6702d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6703d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6704d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6705a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6706d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final LongSparseArray<View> transViewsById = mTransientStateViewsById; 6707d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (transViewsById != null) { 6708d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < transViewsById.size(); i++) { 6709d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View v = transViewsById.valueAt(i); 6710d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!v.hasTransientState()) { 6711d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeDetachedView(v, false); 6712d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette transViewsById.removeAt(i); 6713d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette i--; 6714d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6715d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6716d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6717d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67182148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 6719d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6720d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Puts all views in the scrap heap into the supplied list. 6721d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6722d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void reclaimScrapViews(List<View> views) { 6723d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6724d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(mCurrentScrap); 6725d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6726d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int viewTypeCount = mViewTypeCount; 6727d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View>[] scrapViews = mScrapViews; 6728d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < viewTypeCount; ++i) { 6729d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrapPile = scrapViews[i]; 6730d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette views.addAll(scrapPile); 6731d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67322148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 6733499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6734499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6735d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6736d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Updates the cache color hint of all known views. 6737d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6738d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param color The new cache color hint. 6739d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6740d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette void setCacheColorHint(int color) { 6741d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mViewTypeCount == 1) { 6742d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mCurrentScrap; 6743d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6744d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < scrapCount; i++) { 6745d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(i).setDrawingCacheBackgroundColor(color); 6746d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6747d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6748d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int typeCount = mViewTypeCount; 6749d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < typeCount; i++) { 6750d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final ArrayList<View> scrap = mScrapViews[i]; 6751d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrapCount = scrap.size(); 6752d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int j = 0; j < scrapCount; j++) { 6753d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrap.get(j).setDrawingCacheBackgroundColor(color); 6754d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6755d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6756d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6757d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Just in case this is called during a layout pass 6758d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View[] activeViews = mActiveViews; 6759d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int count = activeViews.length; 6760d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette for (int i = 0; i < count; ++i) { 6761d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View victim = activeViews[i]; 6762d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (victim != null) { 6763d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette victim.setDrawingCacheBackgroundColor(color); 6764d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6765d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6766d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6767499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 67683e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 67693e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int size = scrapViews.size(); 67703e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (size > 0) { 67713e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette // See if we still have a view for this position or ID. 67723e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int i = 0; i < size; i++) { 67733e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View view = scrapViews.get(i); 67743e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final AbsListView.LayoutParams params = 67753e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette (AbsListView.LayoutParams) view.getLayoutParams(); 67763e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67773e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (mAdapterHasStableIds) { 67783e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final long id = mAdapter.getItemId(position); 67793e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette if (id == params.itemId) { 67803e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrapViews.remove(i); 67813e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67823e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else if (params.scrappedFromPosition == position) { 67833e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(i); 67843e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 67853e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 67863e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 6787d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67883e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final View scrap = scrapViews.remove(size - 1); 67893e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette clearAccessibilityFromScrap(scrap); 67903e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return scrap; 67913e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } else { 67923e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette return null; 6793d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 67943e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 67953e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 67963e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearScrap(final ArrayList<View> scrap) { 67973e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette final int scrapCount = scrap.size(); 67983e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette for (int j = 0; j < scrapCount; j++) { 67993e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 68003e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68013e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68023e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 68033e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void clearAccessibilityFromScrap(View view) { 6804632af849240f54f91b2b4fde77d3a51c4d045f74Alan Viverette view.clearAccessibilityFocus(); 68053e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette view.setAccessibilityDelegate(null); 68063e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette } 68073e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette 68083e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette private void removeDetachedView(View child, boolean animate) { 68093e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette child.setAccessibilityDelegate(null); 68103e14162fc655e7a0dae61318911f3e29c07d0bf0Alan Viverette AbsListView.this.removeDetachedView(child, animate); 6811b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6812b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6813b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6814b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 6815d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Returns the height of the view for the specified position. 68169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6817d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position the item position 6818d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @return view height in pixels 68199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6820d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int getHeightForPosition(int position) { 6821d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstVisiblePosition = getFirstVisiblePosition(); 6822d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6823d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int index = position - firstVisiblePosition; 6824d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (index >= 0 && index < childCount) { 6825d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is on-screen, use existing view. 6826d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = getChildAt(index); 6827d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return view.getHeight(); 6828d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6829d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Position is off-screen, obtain & recycle view. 6830d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View view = obtainView(position, mIsScrap); 6831d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette view.measure(mWidthMeasureSpec, MeasureSpec.UNSPECIFIED); 6832d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int height = view.getMeasuredHeight(); 6833d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mRecycler.addScrapView(view, position); 6834d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return height; 6835b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6836b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6837b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 68389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6839d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Sets the selected item and positions the selection y pixels from the top edge 6840d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * of the ListView. (If in touch mode, the item will not be selected but it will 6841d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * still be positioned appropriately.) 6842d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * 6843d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param position Index (starting at 0) of the data item to be selected. 6844d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * @param y The distance from the top edge of the ListView (plus padding) that the 6845d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * item will be positioned. 6846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6847d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void setSelectionFromTop(int position, int y) { 6848d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mAdapter == null) { 6849d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6850a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6851a798170f2abe198f806b12dd904830bc25257525Adam Powell 6852d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (!isInTouchMode()) { 6853d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette position = lookForSelectablePosition(position, true); 6854d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6855d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette setNextSelectedPositionInt(position); 6856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6857d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6858d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mResurrectToPosition = position; 6859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6861d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position >= 0) { 6862d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLayoutMode = LAYOUT_SPECIFIC; 6863d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSpecificTop = mListPadding.top + y; 6864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6865d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mNeedSync) { 6866d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncPosition = position; 6867d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mSyncRowId = mAdapter.getItemId(position); 6868d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6870d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mPositionScroller != null) { 6871d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScroller.stop(); 6872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6873d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette requestLayout(); 6874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6878d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Abstract positon scroller used to handle smooth scrolling. 68799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6880d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette static abstract class AbsPositionScroller { 6881d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position); 6882d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void start(int position, int boundPosition); 6883d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset); 6884d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void startWithOffset(int position, int offset, int duration); 6885d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public abstract void stop(); 6886d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6887079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6888d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette /** 6889d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Default position scroller that simulates a fling. 6890d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette */ 6891d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette class PositionScroller extends AbsPositionScroller implements Runnable { 6892d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int SCROLL_DURATION = 200; 6893539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6894d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_POS = 1; 6895d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_POS = 2; 6896d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_DOWN_BOUND = 3; 6897d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_UP_BOUND = 4; 6898d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private static final int MOVE_OFFSET = 5; 68999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6900d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mMode; 6901d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mTargetPos; 6902d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mBoundPos; 6903d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mLastSeenPos; 6904d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mScrollDuration; 6905d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private final int mExtraScroll; 69069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6907d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private int mOffsetFromTop; 69089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6909d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette PositionScroller() { 6910d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 69119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6913d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6914d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position) { 6915d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 69169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6917d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6918d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6919d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6920d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6921d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6922d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6923d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6924d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6925d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6927d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6928d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6929d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6930d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6931d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6933d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6934d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 69359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6936d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6937d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6938d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6939d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - clampedPosition + 1; 6940d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 6941d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 6942d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = clampedPosition - lastPos + 1; 6943d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 6944d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6945d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 6946d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6947d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 69489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6949d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 6950d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 6951d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 6952d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 6953d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6954d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 6955d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 6956d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 69579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6958d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 6959d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 6960539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6961d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 6962d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void start(final int position, final int boundPosition) { 6963d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 6964539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6965d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosition == INVALID_POSITION) { 6966d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position); 6967d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 69689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6970d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 6971d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 6972d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 6973d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 6974d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette start(position, boundPosition); 6975f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6976d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 6977d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6978f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6979d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6980d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 6981d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 6982d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 6983d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6984539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6985d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6986d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 6987d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 6988d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 6989d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 6990d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 6991d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (clampedPosition < firstPos) { 6992d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromLast = lastPos - boundPosition; 6993d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromLast < 1) { 6994d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 6995d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 6996728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 69970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6998d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = firstPos - clampedPosition + 1; 6999d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromLast - 1; 7000d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 7001d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 7002d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_BOUND; 7003d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7004d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 7005d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_UP_POS; 7006d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7007d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (clampedPosition > lastPos) { 7008d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundPosFromFirst = boundPosition - firstPos; 7009d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPosFromFirst < 1) { 7010d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Moving would shift our bound position off the screen. Abort. 7011d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7012d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 70139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7014d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int posTravel = clampedPosition - lastPos + 1; 7015d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTravel = boundPosFromFirst - 1; 7016d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundTravel < posTravel) { 7017d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = boundTravel; 7018d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_BOUND; 7019d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7020d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = posTravel; 7021d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_DOWN_POS; 70229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7024d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 7025d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 70269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7027595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7028d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (viewTravelCount > 0) { 7029d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION / viewTravelCount; 7030d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7031d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = SCROLL_DURATION; 70329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7033d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = clampedPosition; 7034d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = boundPosition; 7035d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 70369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7037d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 70389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7040d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7041d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(int position, int offset) { 7042d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, offset, SCROLL_DURATION); 70439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7045d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7046d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void startWithOffset(final int position, int offset, final int duration) { 7047d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette stop(); 7048539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7049d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mDataChanged) { 7050d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Wait until we're back in a stable state to try this. 7051d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int postOffset = offset; 7052d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mPositionScrollAfterLayout = new Runnable() { 7053d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override public void run() { 7054d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette startWithOffset(position, postOffset, duration); 7055d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7056d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette }; 7057d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7058539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7059595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7060d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7061d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (childCount == 0) { 7062d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Can't scroll without children. 7063d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7064728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 7065539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7066d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette offset += getPaddingTop(); 7067d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7068d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 7069d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mOffsetFromTop = offset; 7070d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mBoundPos = INVALID_POSITION; 7071d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 7072d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mMode = MOVE_OFFSET; 7073d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7074d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7075d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7076d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7077d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount; 7078d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mTargetPos < firstPos) { 7079d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - mTargetPos; 7080d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (mTargetPos > lastPos) { 7081d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = mTargetPos - lastPos; 70829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7083d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7084d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 7085d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(targetTop - offset, duration, true); 7086d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 70879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7088d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7089d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7090d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7091d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration = screenTravelCount < 1 ? 7092d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette duration : (int) (duration / screenTravelCount); 7093d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = INVALID_POSITION; 7094d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7095d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 70969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 70989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7099d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * Scroll such that targetPos is in the visible padded region without scrolling 7100d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette * boundPos out of view. Assumes targetPos is onscreen. 71019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7102d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette private void scrollToVisible(int targetPos, int boundPos, int duration) { 7103d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 7104d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7105d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7106d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedTop = mListPadding.top; 7107d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int paddedBottom = getHeight() - mListPadding.bottom; 7108539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7109d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetPos < firstPos || targetPos > lastPos) { 7110d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 7111d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette " not visible [" + firstPos + ", " + lastPos + "]"); 7112d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7113d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos < firstPos || boundPos > lastPos) { 7114d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // boundPos doesn't matter, it's already offscreen. 7115d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette boundPos = INVALID_POSITION; 7116d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 7117d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 7118d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View targetChild = getChildAt(targetPos - firstPos); 7119d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = targetChild.getTop(); 7120d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetBottom = targetChild.getBottom(); 7121d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int scrollBy = 0; 7122d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 7123d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetBottom > paddedBottom) { 7124d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetBottom - paddedBottom; 7125d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7126d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (targetTop < paddedTop) { 7127d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = targetTop - paddedTop; 7128d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 71299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7130d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy == 0) { 7131d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7132d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 71331e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 7134d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (boundPos >= 0) { 7135d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View boundChild = getChildAt(boundPos - firstPos); 7136d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundTop = boundChild.getTop(); 7137d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int boundBottom = boundChild.getBottom(); 7138d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int absScroll = Math.abs(scrollBy); 71399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7140d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 7141d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the bottom of the screen. 7142d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.max(0, boundBottom - paddedBottom); 7143d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 7144d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Don't scroll the bound view off the top of the screen. 7145d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette scrollBy = Math.min(0, boundTop - paddedTop); 7146d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 71479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7148d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7149d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, duration); 71509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7152d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7153d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void stop() { 7154d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette removeCallbacks(this); 7155539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 7156539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 7157d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette @Override 7158d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette public void run() { 7159d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int listHeight = getHeight(); 7160d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstPos = mFirstPosition; 71619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7162d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette switch (mMode) { 7163d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_POS: { 7164d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 1; 7165d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 71669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7167d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7168d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7169d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 71709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7171d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7172d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7173d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7174d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7175d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7176595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7177d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7178d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7179d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7180d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7181d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = lastPos < mItemCount - 1 ? 7182d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 71839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7184d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 7185d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(scrollBy, mScrollDuration, true); 71869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7187d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7188d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos < mTargetPos) { 7189d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 71909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7191d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 71929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 71939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7194d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_DOWN_BOUND: { 7195d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewIndex = 1; 7196d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 71979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7198d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mBoundPos || childCount <= nextViewIndex 7199d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette || firstPos + childCount >= mItemCount) { 7200d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 72019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7202d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextPos = firstPos + nextViewIndex; 7203bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 7204d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos == mLastSeenPos) { 7205d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7206d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7207d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7208d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7209d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7210d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View nextView = getChildAt(nextViewIndex); 7211d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewHeight = nextView.getHeight(); 7212d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int nextViewTop = nextView.getTop(); 7213d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 7214d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextPos < mBoundPos) { 7215d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 7216d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mScrollDuration, true); 7217d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7218d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = nextPos; 7219d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7220d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7221d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7222d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (nextViewTop > extraScroll) { 7223d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 7224bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7225bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7226d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7227bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 7228595115089fe3a55615b05c29352fc682d9a43f96Alan Viverette 7229d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_POS: { 7230d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos == mLastSeenPos) { 7231d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7232d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7233d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7234728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 72359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7236d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View firstView = getChildAt(0); 7237d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstView == null) { 7238d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 72399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7240d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int firstViewTop = firstView.getTop(); 7241d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = firstPos > 0 ? 7242d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 724352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 7244d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 7245d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7246d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7247d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7248d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (firstPos > mTargetPos) { 7249d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 725052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7251d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 725252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7253d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette 7254d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_UP_BOUND: { 7255d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewIndex = getChildCount() - 2; 7256d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastViewIndex < 0) { 7257d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 725852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 7259d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + lastViewIndex; 7260079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 7261d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos == mLastSeenPos) { 7262d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7263d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7264d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7265079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 7266441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7267d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final View lastView = getChildAt(lastViewIndex); 7268d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewHeight = lastView.getHeight(); 7269d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewTop = lastView.getTop(); 7270d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewPixelsShowing = listHeight - lastViewTop; 7271d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 7272d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = lastPos; 7273d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (lastPos > mBoundPos) { 7274d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 7275d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7276d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7277d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int bottom = listHeight - extraScroll; 7278d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastViewBottom = lastViewTop + lastViewHeight; 7279d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (bottom > lastViewBottom) { 7280d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 7281d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7282d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7283d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7284441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7285441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7286d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette case MOVE_OFFSET: { 7287d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (mLastSeenPos == firstPos) { 7288d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // No new views, let things keep going. 7289d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7290d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette return; 7291d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7292441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7293d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette mLastSeenPos = firstPos; 7294441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7295d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int childCount = getChildCount(); 7296d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int position = mTargetPos; 7297d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int lastPos = firstPos + childCount - 1; 7298441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7299d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette int viewTravelCount = 0; 7300d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7301d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = firstPos - position + 1; 7302d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7303d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette viewTravelCount = position - lastPos; 7304d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7305441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7306d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // Estimate how many screens we should travel 7307d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float screenTravelCount = (float) viewTravelCount / childCount; 7308441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7309d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 7310d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette if (position < firstPos) { 7311d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (-getHeight() * modifier); 7312d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7313d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7314d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7315d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else if (position > lastPos) { 7316d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = (int) (getHeight() * modifier); 7317d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * modifier); 7318d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7319d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette postOnAnimation(this); 7320d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } else { 7321d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette // On-screen, just scroll. 7322d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int targetTop = getChildAt(position - firstPos).getTop(); 7323d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int distance = targetTop - mOffsetFromTop; 7324d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette final int duration = (int) (mScrollDuration * 7325d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette ((float) Math.abs(distance) / getHeight())); 7326d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette smoothScrollBy(distance, duration, true); 7327d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette } 7328d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7329441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7330441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette 7331d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette default: 7332d22db216fe7da01d70d4db3b3e76797aea64e956Alan Viverette break; 7333441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7334441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 7335441b437b72dd92c1267c4f2cce5f28337e51cd2cAlan Viverette } 73369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7337