AbsListView.java revision 5d565faab21324862fa24490f116424e1b668b1d
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 20499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 26c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 315fade8c69aef621312232ef0647502d7a63990b9Romain Guyimport android.os.Trace; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 33f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.text.InputType; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 585d565faab21324862fa24490f116424e1b668b1dAlan Viveretteimport android.view.ViewRootImpl; 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; 630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 66f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 67f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 68b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 69f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 70f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 71b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 73a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 75335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 76335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 81d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 82d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 83d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 94f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 98499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 99499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 102539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 103539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 22739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 22839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 22939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 23039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 25814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 25914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 26014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 261f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 263f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 264f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 280499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 281499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 282499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 285539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 286539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 287539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2902148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2912148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2922148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 305079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 306079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 307079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 308079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 309079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3650211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4211fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 44839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 44939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 45039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 50614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 50714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 50814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 50914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 51014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5271cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5281cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5291cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 556d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 557d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 558d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 559d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 560d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 587d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 589d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5956dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 596161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5974296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5984296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 59921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 6004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 60121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 60324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 60424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 60524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6186dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 63589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 64089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 662da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 663da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 664da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 665da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 666da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 66707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 66807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 66907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 670c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 671c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 672c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 673c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 674c1d7e770e123adfa992d013fa294693d077cbc78alanv 6754e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6764e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6774e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 678da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 679ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 680ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 681ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 682ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 683ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6850b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6870b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6880b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 689e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 690e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 691e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 692e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 693e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 694e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 695e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 696e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 745e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 746e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 747e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 748e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 749e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 750e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 751e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 752e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 753e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 754e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 755e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 756e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 757e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 758e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 759e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 760e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 76539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 76639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 777617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr) { 778617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette this(context, attrs, defStyleAttr, 0); 779617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette } 780617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette 781617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette public AbsListView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 782617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette super(context, attrs, defStyleAttr, defStyleRes); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 78639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 787617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette final TypedArray a = context.obtainStyledAttributes( 788617feb99a06e7ffb3894e86a286bf30e085f321aAlan Viverette attrs, com.android.internal.R.styleable.AbsListView, defStyleAttr, defStyleRes); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 82120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 82220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 827d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 828d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 829df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 830d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 831d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 832d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 833d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 834d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8354296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8364296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8374296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8384296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 842d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 843d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 85089935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 85189935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 866539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 867539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 86914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 94082ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 94182ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 94282ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 96414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1003a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1004a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1005a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1006a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1007a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1008a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 101714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 104914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1068bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 107229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10765bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10775bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10795bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 108014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 10855bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 10925bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1093bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 10975bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10985bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1099f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 110314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1117bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1118bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1119bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 112829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 112929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 113029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 113229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 113329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 113429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 113529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 113629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 113729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 113829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 113929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 114029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 114129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 114229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 114329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 114429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 114529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 114629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1172f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1175f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12062bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12072bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12094ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12104ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 121486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 121586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 121686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 121786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 121886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 121986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 122086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 122186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 122286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 122386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 122686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 122839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 122939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 123039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 123139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 123239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 123339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 123439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 123539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 123639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 123739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 123839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 123939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 124039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 124139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1242447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 124339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1244447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 124539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 1246447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette if (mFastScroller != null) { 1247447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette mFastScroller.setEnabled(enabled); 124839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 124939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScroller = new FastScroller(this); 1250fb66415655c288be2ac2078cd0a5e20c7040266eAlan Viverette mFastScroller.setEnabled(true); 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 125226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1253b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 125426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 125526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null) { 125626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette mFastScroller.updateLayout(); 125726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 126186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 126286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 126486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 126586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 126686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 126786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 126820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 126986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 127086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 127120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 127220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 127320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 127439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 127539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 127639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 127739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 127839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 127939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 128039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 128139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 128239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 128339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 128439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 128539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 128639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 128739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 128839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 128939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 129039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 129139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 129220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 129339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 129420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 129539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 129620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 129720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 129820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 129939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 130020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 130139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 130239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 130339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 130439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 130539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 130620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 130720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 130820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 130986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 131020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 131186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 131220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 131320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 131420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 1315b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette if (mFastScroller == null) { 1316b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1317b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 1318b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScroller.isEnabled() && mFastScroller.isAlwaysShowEnabled(); 1319b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 132020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 132320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 132426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null && mFastScroller.isEnabled()) { 132520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 132620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 132820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 133020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 133186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 133286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 1338b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette if (mFastScroller == null) { 1339b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1340b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 1341b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScroller.isEnabled(); 1342b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 134520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 134620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 134720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 134820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 134920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 135020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 135220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 135326bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 135426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 135526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 135626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null) { 135726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette mFastScroller.setScrollBarStyle(style); 135826bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 135926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 136026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13620ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1367b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 13810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 14190ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette mFastScroller.onScroll(mFirstPosition, getChildCount(), mItemCount); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14240a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1427a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14284e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14294e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14304e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14314e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14324e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1433d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1434d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1435d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1436d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14379c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14384e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1439d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1440d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14414e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14424e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14434e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14444e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14454e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14468a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14478a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14498a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14508a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14518a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14528a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14538a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14548a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14558a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1456fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1457fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1458fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 145980943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1460fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1461fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1462fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 146380943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1464fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1465a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1466a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1467a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1468a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1469a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 147048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 147148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 147248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1473a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1474a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1475fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1476a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1477a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1478a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1479a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1480a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1481a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1482fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1483a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1484a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1485a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1486a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1487a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1488a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 148948d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14908a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14918a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14925b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 14935b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 14945b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 14955b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 14965b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 14975b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14985b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 14995b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 15005b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 15015b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 15025b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 15035b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 15045b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15055b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15065b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15075b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 15726bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1628a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16292614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1630f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 163114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1651a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16522614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1653f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 165443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 165543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 165614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 165743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 165843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 165943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 166043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 166114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1662f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1674a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 16752614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 167743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 167843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 167943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 168043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 168143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 168214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1694f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1695f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1716f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1726e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1727e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1728e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1729e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1730e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1731e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1732e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1733e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1734e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1735e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1736e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1737e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1738e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1739e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1740e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 174199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17527becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17537becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17547becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17557becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17567becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17577becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 17587becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 17597becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 17607becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 17617becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 176499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 176599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 176699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 176799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 176899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 176999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1788a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1789a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17909a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17919a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17929a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17939a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 179414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17959a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17969a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17979a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17989a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17999a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18009a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18012614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1803335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1804335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1805335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1806335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1821e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1830079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1832e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18492614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18502614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1851a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1852a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1853a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1854a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1855a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1861d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 18670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 190731986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1908b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1909b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1910b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1911b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1912b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1913b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1932161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1934e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20130b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20140b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20150b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2064da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2065da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2066da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2067da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2068ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2069da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2070da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2071ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2072da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2073da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2076d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2077d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2078d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2079d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2084f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2085f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2086f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2087f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2088f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2089f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2090f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20910ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 20925db566f16a1b8f36e84a9be00cde40482d48466bAdam Powell if (mFastScroller != null && (mItemCount != mOldItemCount || mDataChanged)) { 20935db566f16a1b8f36e84a9be00cde40482d48466bAdam Powell mFastScroller.onItemCountChanged(mItemCount); 20942c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2095f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2110d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2111d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2112d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2113d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2114d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2115d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2116d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2122d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2123d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2124d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21285d565faab21324862fa24490f116424e1b668b1dAlan Viverette /** 21295d565faab21324862fa24490f116424e1b668b1dAlan Viverette * @return the direct child that contains accessibility focus, or null if no 21305d565faab21324862fa24490f116424e1b668b1dAlan Viverette * child contains accessibility focus 21315d565faab21324862fa24490f116424e1b668b1dAlan Viverette */ 21325d565faab21324862fa24490f116424e1b668b1dAlan Viverette View getAccessibilityFocusedChild() { 21335d565faab21324862fa24490f116424e1b668b1dAlan Viverette final ViewRootImpl viewRootImpl = getViewRootImpl(); 21345d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (viewRootImpl == null) { 21355d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21365d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21375d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21385d565faab21324862fa24490f116424e1b668b1dAlan Viverette View focusedView = viewRootImpl.getAccessibilityFocusedHost(); 21395d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (focusedView == null) { 21405d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21415d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21425d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21435d565faab21324862fa24490f116424e1b668b1dAlan Viverette ViewParent viewParent = focusedView.getParent(); 21445d565faab21324862fa24490f116424e1b668b1dAlan Viverette while ((viewParent instanceof View) && (viewParent != this)) { 21455d565faab21324862fa24490f116424e1b668b1dAlan Viverette focusedView = (View) viewParent; 21465d565faab21324862fa24490f116424e1b668b1dAlan Viverette viewParent = viewParent.getParent(); 21475d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21485d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21495d565faab21324862fa24490f116424e1b668b1dAlan Viverette if (!(viewParent instanceof View)) { 21505d565faab21324862fa24490f116424e1b668b1dAlan Viverette return null; 21515d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21525d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21535d565faab21324862fa24490f116424e1b668b1dAlan Viverette return focusedView; 21545d565faab21324862fa24490f116424e1b668b1dAlan Viverette } 21555d565faab21324862fa24490f116424e1b668b1dAlan Viverette 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 225521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 225621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 226021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 22615fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 22625fade8c69aef621312232ef0647502d7a63990b9Romain Guy 226321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2266539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2267f9736d3b9aca08433382c18eb9157ab52c55ec2fAlan Viverette if (scrapView == null) { 2268f9736d3b9aca08433382c18eb9157ab52c55ec2fAlan Viverette scrapView = mRecycler.getScrapView(position); 2269539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22754213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22764213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22774213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22784213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 228421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2285a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 22861e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 22871e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Clear any system-managed transient state so that we can 22881e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // recycle this view and bind it to different data. 22891e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 22901e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 22911e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 22921e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2293a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 22974213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22984213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22994213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 23004213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 23014213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2307aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2308aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2309aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2310aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2311aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2312aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2313aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2314aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2315aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2316aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2317aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2318aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2319aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2320aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2321c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2322c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2323c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2324c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2325b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2326b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2327b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2328c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2329c1d7e770e123adfa992d013fa294693d077cbc78alanv 23305fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 23315fade8c69aef621312232ef0647502d7a63990b9Romain Guy 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2335c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2336c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 233750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 233850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 233950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 234050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 234150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 234250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 234350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 234450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 234550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 234650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 234750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 234850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2349c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2350c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2351c1d7e770e123adfa992d013fa294693d077cbc78alanv 2352c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23535b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2354c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2355c1d7e770e123adfa992d013fa294693d077cbc78alanv 2356c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2357c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2358fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2359fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2360fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2361fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2362c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23639c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2364c1d7e770e123adfa992d013fa294693d077cbc78alanv 23659c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23669c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2367c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2368c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2369c1d7e770e123adfa992d013fa294693d077cbc78alanv 23709c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23719c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2372fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2373fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2374fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2375c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2376c1d7e770e123adfa992d013fa294693d077cbc78alanv 2377c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 23789c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 23799c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 23809c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 23819c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23829c3e0e68260fe50456996d75304b73054cbde94aalanv } 23839c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2384fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23859c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23869c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23879c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23889c3e0e68260fe50456996d75304b73054cbde94aalanv } 23899c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2390fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2391fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2392c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2393c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2394fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2395fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2396fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2397c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2398c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2399fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2400c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2401c1d7e770e123adfa992d013fa294693d077cbc78alanv 2402fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2403c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2404c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2405c1d7e770e123adfa992d013fa294693d077cbc78alanv 24065b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 24075b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 24085b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 24095b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 24105b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 24115b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 24125b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 24135b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 24145b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 24155b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 24165b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 24175b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 24185b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 24195b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24205b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24215b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24225b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 24235b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 24245b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 24255b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24265b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24275b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 24285b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 24295b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 24305b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 24315b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 24325b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24335b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24345b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 24355b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 24365b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 24375b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24385b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24395b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 24405b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24415b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24425b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24435b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24445b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2445079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2446079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2447079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2448079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2449079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2452e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2453e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2454e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2461a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2462079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2463079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 250420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 250520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 250620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 250720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 250820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 250920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 251020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 251120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 251220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 251320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 251420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 251520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 251620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 251720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 251820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 251920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 252020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 252120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 252220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 252320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 252420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 252520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 252620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 252720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 252820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2534d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 256374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2567079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2611079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2629df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2630df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2631df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2632df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2636079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2640ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2641ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2642ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2643ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2650df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2651df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2671079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2672079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2673079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2674079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2675079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2676079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2677079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2678079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2679079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2680079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2684079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27370e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 27380e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 27390e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 274282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 274382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 274482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 27456a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 27466a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 27476a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 27486a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 27496a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 275082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27571f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 27581f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 27591f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 276021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 276121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 276221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27640e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 27650e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 27669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 27670e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 276982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2770bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 277182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 277282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 277382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27741cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27751cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 27761cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 27771cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27781cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27791cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27801cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 27811cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 27821cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 27831cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2784d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2785d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2786d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2787d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2788d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2789d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 27904032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2791d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2792d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2793d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2794d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2795d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2796d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2797d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2798d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2799d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2800d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2801d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2802d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2803a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2804d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2815670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2816670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2817670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2818670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2819670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 28204032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 28214032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 28224032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 28250fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2829670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 283897566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28623a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 28633a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 28643a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 28653a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio if (mFastScroller != null) { 28663a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio mFastScroller.setScrollbarPosition(getVerticalScrollbarPosition()); 28673a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 28683a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 28693a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28851487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 28861487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 28871487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 28881487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 28891487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 28901487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28911487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 28921487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 28931487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28941487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 28951487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 28961487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28971487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 28981487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 28991487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29001487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 29011487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 29090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 291529219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2928005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2929005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2930005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2931005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2932005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 29337890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 29347890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 29357890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 29367890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 29377890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 29387890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 29448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 29688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29918350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 29951e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 29961e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 29981e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 3000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 3001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3023fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 3024fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 3025fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 3026fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 3027fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 3028fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 3029fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 3030fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 3031fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 3032fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3033fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3034fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3035fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3036fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3037fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3062df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3063df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3064df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3065df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3066df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 306824d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3069dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3070dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3071dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3072df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3073dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3075dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 307745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 307845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 307945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 308045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 31408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3151079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3152079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3153e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 320374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 321013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 321113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 321213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 321313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 322578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 325178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 325278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 325378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 325478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 325578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 325678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 325878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 326078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 326178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 326278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 326378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 326478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 326578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 326778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 326878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 326978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 327578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 327678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 328978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 329978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 330078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 330278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3303a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 330478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 330578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 330678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 330778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 330878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3309a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 331078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 331478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 331678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 331878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 331978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 332078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 332178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 332278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 332378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 332478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 332578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 332778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 332878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 332978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 333078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 333178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 333278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 333378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 333578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 333678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 333778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 333878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 333978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 334078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 334178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 334278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 334378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 334478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 334578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 334678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3347a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 334878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 334978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 335078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 335178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 335278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3353a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 335478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 335878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 335978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 33609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 33619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 33629d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 336378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 336478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 33669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 336778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 336878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 336978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 337078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 337178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 337278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 337378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 337478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 337578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 337678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 337778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 337878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 337978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 338078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 338178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 338478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33858fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33981e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34054032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 34064032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 34074032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 34110fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3421dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3422dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3423dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3424dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3425dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3426dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 34271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 34281fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 34291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 34301fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 343131986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow()) { 343228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 343328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 343428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 343528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 343628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 343728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 343828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 344582f3495b146b267f3786997752cef25310176349Romain Guy 344613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 34508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 34518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 34528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 34538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 34578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 34588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34598fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34609d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 34618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 34628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 34638fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34648fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3465e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 34678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 34688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3470e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 34728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 34738fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 34748fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 34758fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 34768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 34778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 34788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 34798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 34808fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 34818fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 34838fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3485fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 34868fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 34878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 34888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 34898fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 34908fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 34918fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 34928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 34938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 34948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 34958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 34968fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 34978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 34988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 34998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 35008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 35018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 35028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 35038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 35048fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3505fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3506e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3508e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3509e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3510e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3511e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 35123d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 35133d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 35143d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 35153d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3516e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3517e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3518e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3519e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3520e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3521e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 35223d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 35233d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3524e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3525e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 35263d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3527e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3528e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3529e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 35303d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3531e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 35323d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 35333d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 35343d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 35353d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 35363d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 35373d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 35383d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 35393d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 35403d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 35413d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 35423d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3543e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 35443d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3545e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3546e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3547e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3548e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35493d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3550e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3551e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35522585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 35536f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3554e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3555e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 35563d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3557e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 35586f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 35593d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3560e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3561e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3562e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3563e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3564e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35656f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3566b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3567b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 35683d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3569e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3570e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3571e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3572e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3573e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3574e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3575e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3576e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3577e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3578e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3579e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3580e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3581e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3582e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3583e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3584e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35858fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 35868fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3587e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 35888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 35898fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 35908fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 35918fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 359274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 359374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 359474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 359574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 359674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 359774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 35983d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 35993d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 360074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 360174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 360274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 360374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 360474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 360574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 360674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 360774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 360874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 360974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 36108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 36128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 36138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 36148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3616e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3618e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3619e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3620e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3621e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3622e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3623e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3624e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 362574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3626e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3627e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3628e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3629e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 363074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 363174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 363274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 363374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 363474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 363574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3636e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 363774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 363874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 363974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 364174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 364374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 364474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3645e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 364674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 364774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 364874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 364974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 365074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 365174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 365274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 365374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 365474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 365574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 365674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 365774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 366074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 366174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 366274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 366374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 366474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 366574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 366674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 366774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 366874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 366974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 367031986b5b696c399b356c8819cb581441027bef36Adam Powell if (!mDataChanged && isAttachedToWindow()) { 367174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 367274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 367374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 367474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 367574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 367674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 367774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 367874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 367974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 368074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 368174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 368274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 368374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3686e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3687e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3688e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3689e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3690e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3691e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3692e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3693e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3694e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3695e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3696e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3697e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3698e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3699e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3700e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3701e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3702e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3703e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3704e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3705e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3706e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3707e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3708e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3709e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3710e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3711e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3712e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3713e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3714e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3715e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3716e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3717e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3718e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3719e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3720e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3721e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3722e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3723e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 37246198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 37256198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3726e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3727e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3728e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3729e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3730e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 37316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3734e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3735e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3736e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3738e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3740e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3741e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3742e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3744e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3745e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3746e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3748e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3749e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3750e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3751e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3752e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3755e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3756e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3758e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3760e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3761e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3762e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3765e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3766e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 376774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3768e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3770e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3772e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3773e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3774e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3775e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3777e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3779e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3780e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3781e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 37824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3783e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3785e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3786e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3787e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3788e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3789e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 37904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3791e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 37924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 37939bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3794e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3795e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 37969bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3797e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3798e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3799e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3800e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 380174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3802e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3803e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3804e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3805e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 380674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3807e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3810e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3811e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3812e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3813e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3814e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38180a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 38190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 38200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 38210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 38220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 38230a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 38240a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 382933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 383033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 383133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 383233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 383333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 383433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 383533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 383633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3837275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 383833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 383933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 384033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 384133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 384233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 384333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 384433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 384533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 384633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 384733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 384833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 385507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 385607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 385707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 38609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3861a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 38639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3864a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 387007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 387107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 387207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 38769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 38779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3878e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3879a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 38819d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3882a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3883a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 389107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 389207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 389307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 389407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 389507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 389607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 389707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 389813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 389913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 390013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 390113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 390213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 390313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 390413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 390513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 390613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 390713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 390813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 390913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 391013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 391113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 391213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 391313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 391413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 391513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 391613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 391713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 391813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 391913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 392013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 392113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 392213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 392313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 392413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 392513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 392613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3928a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 3929a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptHoverEvent(event)) { 3930a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 3931a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3932a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3933a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 3934a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3935a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3936a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 39400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 39421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 39431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 39441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 394531986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow()) { 394628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 394728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 394828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 394928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 395028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 395128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 395228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 39530ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptTouchEvent(ev)) { 39540ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 395979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 39664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 39674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 39684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 397079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 398213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 398313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 398479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 39854b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 39864b4f40f84e72579417604143e5f42115769649b8Romain Guy } 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 39932585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 39942585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 39952585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 39962585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 39972585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 39984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 399913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 400013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 400178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 400913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 40124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 401313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 40194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 40204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 40214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 40284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 40294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 40304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 40314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 40324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 40334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 40344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 40354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 40364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 40374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 40394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 40404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 40760046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4098d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 40998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4100d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4101d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4102d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4104d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4105d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4106d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4107d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4108d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4109d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4110d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4111b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4112b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4113d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4114d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4115d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4116d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4117d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4118b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4119d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4120d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4121d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4122d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4123d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4124d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 412579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 412979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 41320b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 41361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41441cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 41451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 41461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 41471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4157e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 41620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4163044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4164044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41671fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41824032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 41834032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 41844032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 41854032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 41864032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 41920b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 41950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 41981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4201d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 420479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4205d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 420621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 420721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 420821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4209d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 42105e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 42115e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 42125e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 42135e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 42145e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4215d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4216d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4217d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4218d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 422379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 422479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4225d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 42274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4228d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4229d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4230d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4231d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4232d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 42347f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 42357f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 42367f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 42377f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 423879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 423979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 424079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 424179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 42429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4256637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4267d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4271d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 42809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 42819d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42893cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 42903cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 42913cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4293637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4295637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 42969d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 42981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4306637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4307d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4321044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4322044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4325044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4326044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4327044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4328044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4329044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4330044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4331044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4332044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4333044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4334044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4335044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4336044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4351e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 43524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4357e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 43584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 436452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4365e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4366e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 43674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4372e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 43734032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43744032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4375aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4376aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4377161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4378aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4379aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4380aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4381161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4382aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4383aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4384aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4385e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4386e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4387e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4388e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4389e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4390e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4392e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43944bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43950061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43960061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 43970061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 43990061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 44000061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44030061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44120061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 44154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44161fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4419e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 44204032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 44214032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4427aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4428aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4429161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4430aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4431aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4432aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4433161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4434aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4435aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4436aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4437e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4438e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4439e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4440e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4441e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4442e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4443458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4444e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 44454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44464bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 44470061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 44480061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4449458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44550061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4461458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44640061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4465458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4466458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4470458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44710061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4473458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4475458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44810061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4482458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44900061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 44934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4496e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4497e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4498322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4499322171b333a1c796fcc1428a96ea1d854a3881faErik } 4500322171b333a1c796fcc1428a96ea1d854a3881faErik 4501aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 45024032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 45034032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4504aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4505aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4506aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4507161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4508aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4509aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4510aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4511161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4512aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4513aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4514aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4515aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4516aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4517aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4518aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4519aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4520aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 45211fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 45221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 45230061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4524e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4525e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4526e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4527e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4528e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4529e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4530371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4531e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 45324bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 45330061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 45340061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 45350061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 45360061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4537e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4538e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 45390061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 45400b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4541e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4542e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4543e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4544371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 45454ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 45460b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 45470b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4548371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4549234a5715309ea74757780aff6123e3144efb5b69Adam Powell 45501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4551e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4552e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4553e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4554e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4555e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4556e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4557e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4558e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4559e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4560e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4561e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4562e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4563e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4564e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4565e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4566e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4567e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4568e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4569e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4570e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4571e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4572e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4573e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4574e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4575e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4576e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4577e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4578e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4579e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4580e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4581e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4582e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4583e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4584e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4585e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4586e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4587e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4588e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4589e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4590e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4591e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4592e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4593e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4594e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4595e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4596e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4597e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4598e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4599e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4600e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4601e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4602e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4603e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4604e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4605e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4606e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4610e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 46154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 46204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46210b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 46220b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 46230b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 46361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4637458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46381fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 46390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46427e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 46431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4650029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 46514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4652029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4653029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46601fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 46671fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 46687e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 46700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 46770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 46910b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 46920b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 46930b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 46951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 46961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46980b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 47027e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 47031fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 47170b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 47251fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 47277e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 47280b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 47291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 47311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 47340b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4740e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4741234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4742234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 47430b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4744234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4745234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4746e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4747371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4748234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4749234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4750e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4751371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4752e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 47534032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4754e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 47554032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 47564032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 47574032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 47584032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47594032252c997be9f5d013054dc23ace855007b3a5Adam Powell 47604032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 47614032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 47624032252c997be9f5d013054dc23ace855007b3a5Adam Powell 47634032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 47644032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 47650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 47660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 47670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 47681fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4769e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 47700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 47710b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 47720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 47731fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4774e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4775e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4776e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4777234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 47780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 47790b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 47800b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4781e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4782e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4783e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4784e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 47924bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 47934bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 47944bede9e425875542976a422222510fa4056a8339Romain Guy */ 47954bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 47964bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 47974bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 47984bede9e425875542976a422222510fa4056a8339Romain Guy } 47994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 48004bede9e425875542976a422222510fa4056a8339Romain Guy } 480121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 480221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 480321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 480421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 48054e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 480621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 480721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 480821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 480921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 481021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 48114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 48124bede9e425875542976a422222510fa4056a8339Romain Guy /** 4813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4823322171b333a1c796fcc1428a96ea1d854a3881faErik 4824322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4825322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4826322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4827322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4828322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4829322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4830322171b333a1c796fcc1428a96ea1d854a3881faErik * 4831322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4832322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4833322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4834322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4835322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4836322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4837322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4838322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4839322171b333a1c796fcc1428a96ea1d854a3881faErik } 4840322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4841322171b333a1c796fcc1428a96ea1d854a3881faErik } 4842322171b333a1c796fcc1428a96ea1d854a3881faErik 4843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4844e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4845e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4846e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4847e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4848e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4849e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4850e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4851e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4852e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4853e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4854e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4855e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4856e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4857e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4858e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4859e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4860e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4861e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 48654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 48830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 48840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 48850b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 48860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48904032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4891299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 48924032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 48934032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 48944032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 48954032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 48964032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 48974032252c997be9f5d013054dc23ace855007b3a5Adam Powell 489879303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 48994032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4900aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 49014032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 49024032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 49034032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 49044032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 49054032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 49064032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 49070046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 49080b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4909299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4912499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4913499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4914499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4915499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4916499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4917499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4918499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4919499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4920499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4921499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4922499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4923499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4924499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4925499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4926499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4927499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4928499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4929499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4930499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4931499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4932499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4933499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4934499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4935499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4936499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4937499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4938499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4939499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4940499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4941499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4942499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4943499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4944499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4945499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4946499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4947499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 49499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 49520211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 49579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 49589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 49599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 49608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 49619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 49629d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 49639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 49649d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 49659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 49669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 49679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 49699d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 49709d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49716dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 49726dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 49739d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 49749d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49802f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 49812f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 49822f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * @param y the amount of pixels to scroll by vertically 4983ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @see #canScrollList(int) 49842f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 4985ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette public void scrollListBy(int y) { 4986ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette trackMotionScroll(-y, -y); 4987ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 4988ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 4989ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 4990ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4991ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * 4992ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @param direction Negative to check scrolling up, positive to check 4993ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * scrolling down. 4994ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @return true if the list can be scrolled in the specified direction, 4995ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * false otherwise. 4996ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @see #scrollListBy(int) 4997ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 4998ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette public boolean canScrollList(int direction) { 4999ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 5000ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette if (childCount == 0) { 5001ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 5002ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 5003ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 5004ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 5005ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final Rect listPadding = mListPadding; 5006ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette if (direction > 0) { 5007ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 5008ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int lastPosition = firstPosition + childCount; 5009ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 5010ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } else { 5011ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstTop = getChildAt(0).getTop(); 5012ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 5013ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 50142f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette } 50152f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette 50162f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette /** 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 5022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 5027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5035bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 5036bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 5037bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 5038bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 5039bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 5040bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 5041bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 5042bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 5043bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 5044bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 5046bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 5047bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 5066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 5067bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 5068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 5069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 5070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 5072bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 5073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 5074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 5075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 50770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 50780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 50790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 50800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 5083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 5084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5088029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 5089029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 5090029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 5091029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 5094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 5097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 51008c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 51018c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 51028c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 51038c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 5105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 5107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 51121e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // The view will be rebound to new data, clear any 51131e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // system-managed transient state. 51141e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 51151e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 51161e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 5117079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 51228c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 51238c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 51248c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 51258c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 5127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 5129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 5132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 51351e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // The view will be rebound to new data, clear any 51361e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // system-managed transient state. 51371e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 51381e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 51391e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 5140079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 5152539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 5153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5154539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 51559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 51569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 51579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 51581fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 51599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 51609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 5164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 5165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5172029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 51732a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 51742a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5175079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5176079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5177079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5178079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5179079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5180079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 51812a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5182079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5183079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5184029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5185029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 51894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5225ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5226ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5227ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 52564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52858fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 52864e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 52878d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 52888d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 52894e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 52908d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5291becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5292becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5293becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 52944e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 52958d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 52964e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 53924032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 53934032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 53944032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 54013c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 541214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 541314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 541414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 541514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 541614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 541714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 541814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 541914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 542014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 542114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 542214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 542314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 542414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 542514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 542614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 542714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 542814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 542914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 543014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 543114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 543214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 543314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 543414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 543514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 543614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 543714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 543814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 543914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 544014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 544114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 544214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 544314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 544414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 544514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 544614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 544714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 544814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 544914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 545014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 545114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 545214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 545314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 545414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 545514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 545614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5460ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5461ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 546314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 546414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 546514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5467539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5468539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5469539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 547014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 547114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5478e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54800785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5483da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5484da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5485da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5486da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5487da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5488da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 54890785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5490ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 54910785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 54920785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5493ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5494ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 54950785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 54960785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 54970785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 54980785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 54990785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 55000785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 55010785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5594e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5595079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 559943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 560043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 560143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 560243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 560343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 560443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 560543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 560643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 560743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 560843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 560943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 561043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 561143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 561243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 561343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 561424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 561543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 561643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5620d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 56324df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5633b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 564324443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5646b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56924e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 56934e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 56944e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 56954e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 56964e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 56974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 56984e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 57014e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 57024e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5723b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 573983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 57408d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 57418d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5742b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5743b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5744b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5745b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 574683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 574783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 574883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 574983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 575083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 575183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5757cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5761b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5766105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5788b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5789b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5790b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5791b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5792c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 57931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 57941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 5795f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mPublicInputConnection = new InputConnectionWrapper(outAttrs); 57961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5797f69913056b8c6000ff0306573a97971702e8d35aRomain Guy outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 57981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 57991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5800c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5801c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5802b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 58030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5804f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private class InputConnectionWrapper implements InputConnection { 5805f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private final EditorInfo mOutAttrs; 5806f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection mTarget; 5807f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5808f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public InputConnectionWrapper(EditorInfo outAttrs) { 5809f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mOutAttrs = outAttrs; 5810f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5811f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5812f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection getTarget() { 5813f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) { 5814f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5815f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5816f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget; 5817f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5818f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5819f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5820f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean reportFullscreenMode(boolean enabled) { 5821f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since it is 5822f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the "real" one the IME is talking with. 5823f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.reportFullscreenMode(enabled); 5824f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5825f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5826f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5827f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performEditorAction(int editorAction) { 5828f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // The editor is off in its own window; we need to be 5829f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the one that does this. 5830f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (editorAction == EditorInfo.IME_ACTION_DONE) { 5831f69913056b8c6000ff0306573a97971702e8d35aRomain Guy InputMethodManager imm = (InputMethodManager) 5832f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5833f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (imm != null) { 5834f69913056b8c6000ff0306573a97971702e8d35aRomain Guy imm.hideSoftInputFromWindow(getWindowToken(), 0); 5835f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5836f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return true; 5837f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5838f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return false; 5839f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5840f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5841f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5842f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean sendKeyEvent(KeyEvent event) { 5843f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since the filter 5844f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // text view may not be shown in a window so has 5845f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // no ViewAncestor to dispatch events with. 5846f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.sendKeyEvent(event); 5847f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5848f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58490ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5850f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextBeforeCursor(int n, int flags) { 5851f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5852f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextBeforeCursor(n, flags); 5853f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5854f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58550ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5856f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextAfterCursor(int n, int flags) { 5857f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5858f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextAfterCursor(n, flags); 5859f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5860f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58610ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5862f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getSelectedText(int flags) { 5863f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5864f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getSelectedText(flags); 5865f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5866f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58670ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5868f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public int getCursorCapsMode(int reqModes) { 5869f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5870f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getCursorCapsMode(reqModes); 5871f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5872f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58730ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5874f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5875f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().getExtractedText(request, flags); 5876f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5877f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58780ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5879f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5880f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().deleteSurroundingText(beforeLength, afterLength); 5881f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5882f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58830ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5884f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingText(CharSequence text, int newCursorPosition) { 5885f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingText(text, newCursorPosition); 5886f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5887f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58880ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5889f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingRegion(int start, int end) { 5890f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingRegion(start, end); 5891f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5892f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58930ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5894f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean finishComposingText() { 5895f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget == null || mTarget.finishComposingText(); 5896f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5897f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58980ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5899f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitText(CharSequence text, int newCursorPosition) { 5900f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitText(text, newCursorPosition); 5901f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5902f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59030ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5904f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCompletion(CompletionInfo text) { 5905f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCompletion(text); 5906f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5907f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59080ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5909f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCorrection(CorrectionInfo correctionInfo) { 5910f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCorrection(correctionInfo); 5911f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5912f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59130ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5914f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setSelection(int start, int end) { 5915f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setSelection(start, end); 5916f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5917f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59180ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5919f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performContextMenuAction(int id) { 5920f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performContextMenuAction(id); 5921f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5922f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59230ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5924f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean beginBatchEdit() { 5925f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().beginBatchEdit(); 5926f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5927f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59280ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5929f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean endBatchEdit() { 5930f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().endBatchEdit(); 5931f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5932f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59330ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5934f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean clearMetaKeyStates(int states) { 5935f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().clearMetaKeyStates(states); 5936f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5937f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59380ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5939f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performPrivateCommand(String action, Bundle data) { 5940f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performPrivateCommand(action, data); 5941f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5942f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5943f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5944b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5945b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5946b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5947b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5948b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5949b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5950b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5951b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 59520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5953b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 5960f69913056b8c6000ff0306573a97971702e8d35aRomain Guy PopupWindow p = new PopupWindow(getContext()); 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5964f69913056b8c6000ff0306573a97971702e8d35aRomain Guy p.setContentView(getTextFilterInput()); 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 59679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 59689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5970d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 59769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5979f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private EditText getTextFilterInput() { 5980f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTextFilter == null) { 5981f69913056b8c6000ff0306573a97971702e8d35aRomain Guy final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5982f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter = (EditText) layoutInflater.inflate( 5983f69913056b8c6000ff0306573a97971702e8d35aRomain Guy com.android.internal.R.layout.typing_filter, null); 5984f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // For some reason setting this as the "real" input type changes 5985f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the text view in some way that it doesn't work, and I don't 5986f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // want to figure out why this is. 5987f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5988f69913056b8c6000ff0306573a97971702e8d35aRomain Guy | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5989f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5990f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.addTextChangedListener(this); 5991f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5992f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTextFilter; 5993f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5994f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 6000f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getTextFilterInput().setText(""); 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 601924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 602443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 60331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 60411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 60421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 60439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 6046f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (isTextFilterEnabled()) { 6047f69913056b8c6000ff0306573a97971702e8d35aRomain Guy createTextFilter(true); 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 60499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 60509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 60519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 60529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 60559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 60561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 60579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 60589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 60609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 60619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 60629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 60639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 60741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60808fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 60839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 60849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6089aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 6090aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 6091aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 6092aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 6093aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 6094aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 61349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 61405be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 61415be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 61425be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 61435be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 61445be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 614952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 615052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 615152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 615252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 615352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 615452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 615552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 615652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61657b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 61809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 618413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 61859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 61879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 6188c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 6200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 6201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 6202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 6203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 620613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6207499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6208499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6209499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6210499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6211499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 62129b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 62139b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 62143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 62153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 62163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 62173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 62183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 62193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 62203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 62219b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 62222148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 62239b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6224499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6225335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 6226335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 6227335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 6228499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6229499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6230499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6231a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 62320ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6233a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 62340ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6235a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 6236a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 6237a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6238a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6239a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 6240a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 6241a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6242a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6243a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6244a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6245a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 62462148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 62472148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 62482148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 62498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 62502148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 62512148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 62522148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 62532148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 62542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6255499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 62578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 625816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 62612148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 62622148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 62632148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 62642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 626516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6266fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6267fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 626816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 627016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6275499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 62768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6278fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6279fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6280fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6281fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6282fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6286b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6287b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6288b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6289b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6290b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6291b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6292b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6293b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6294b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6295b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6310b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6311b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6312b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6313b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6314b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6315b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6316b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6317b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6318b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6319b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6320b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6321b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6322b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6323b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6324b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6325b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6326b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6327b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 63289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6329f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6330f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6331f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6332f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6333f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6334f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6335f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6336f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6337f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6338f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6339f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6340f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6341f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6342f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6343f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6344f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6345f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6346f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6347f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6348f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6349f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6350f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6351f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6352f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6353f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6354f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6355a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6356a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6357a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6358a798170f2abe198f806b12dd904830bc25257525Adam Powell 63598fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6360f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6361f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6362f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6363f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6364f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6365f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6366f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6367f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6368f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6370f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6371f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6372f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6373f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63748fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6375f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6376f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6377f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6378f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6380f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6381f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6382f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6383f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6384f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6385f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6386f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6387f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6388f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6389f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6390f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6391f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6392f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6393f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6395f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6396f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6397f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6398f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6399f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6400f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6401f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6402f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6403f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6404f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6405f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 64079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 64089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6414bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 64159bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 64169bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 64179bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 64214df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 64224df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 64234df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 64244df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 64254df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6426bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 64274df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 64284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 64290bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 64300bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 64310bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 64320bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 64330bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 64340bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 64350bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 64360bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6437bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 64380bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 64390bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6440079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6441079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6442079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6443079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6444079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6445079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6446079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6447539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6448539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6449539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6450539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6451539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 64589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 64619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 64629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 64639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 64669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 64679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 64729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 64739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 64749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 64769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 64779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 64799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 64819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 64829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 64839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 64919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 64929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 64939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 64949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 64959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 64979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 64989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 65099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 65119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 65179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 65199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 65219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 65239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6524539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6525539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6526539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6527728713258ffef4df053b85e0a3488334cbcba24cChet Haase private LongSparseArray<View> mTransientStateViewsById; 6528539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 65299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 65309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 65319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 65329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 65349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 65359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 65369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 65379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 65399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 65409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 65419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6543f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6544f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6545f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6546f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6547f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6548f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6549f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6550f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6551f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6552f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6553f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6554f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6555f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6556f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6557f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6558f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6559f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6560539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6561539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6562539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6563539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6564539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6565539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6566728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6567728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int count = mTransientStateViewsById.size(); 6568728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < count; i++) { 6569728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.valueAt(i).forceLayout(); 6570728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6571728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6572f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 65730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 65749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 65769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 65809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 65829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 65849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 65859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 65869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 65879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 65909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 65919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 65929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 65939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 65949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 65959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6598539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6599539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6600539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6601728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6602728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6603728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 66049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 66089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 66099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 66109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 66119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 66129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 66149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 66159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 66169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 66189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619f69913056b8c6000ff0306573a97971702e8d35aRomain Guy //noinspection MismatchedReadAndWriteOfArray 66209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 66219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 66229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 66239c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 66249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 66259c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 66269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 66279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 66284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 66299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 66359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 66369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 66379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 66389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 66399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 66419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 66429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 66439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 66449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 66459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 66469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 66479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 66499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6651539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6652728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6653728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(position); 6654728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViewsById.get(id); 6655728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.remove(id); 6656728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6657539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6658728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews != null) { 6659728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int index = mTransientStateViews.indexOfKey(position); 6660728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (index >= 0) { 6661728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViews.valueAt(index); 6662728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.removeAt(index); 6663728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6664728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6665539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6666728713258ffef4df053b85e0a3488334cbcba24cChet Haase return null; 6667539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6668539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6669539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6670539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6671539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6672539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6673539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6674539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6675539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6676728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6677728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6678728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6679539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6680539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 66819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 66839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 66859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6686079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 66879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 66889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 66899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6690079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 66919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 66949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6697d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * Puts a view into the list of scrap views. 6698d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * <p> 6699d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6700d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * with transient state will be preserved for later retrieval. 67019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 67029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 6703d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * @param position The view's position within its parent 67049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6705079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 6706d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 67079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 67089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 67099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6711539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6712539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 67131e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Remove but don't scrap header or footer views, or views that 67141e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // should otherwise not be recycled. 6715d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final int viewType = lp.viewType; 6716d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (!shouldRecycleViewType(viewType)) { 6717d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette return; 6718d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6719d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6720d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.dispatchStartTemporaryDetach(); 6721d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6722d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Don't scrap views that have transient state. 6723539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6724d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (scrapHasTransientState) { 6725d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6726d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the adapter has stable IDs, we can reuse the view for 6727d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // the same data. 6728d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViewsById == null) { 6729d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6730d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6731d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6732d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else if (!mDataChanged) { 6733d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the data hasn't changed, we can reuse the views at 6734d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // their old positions. 6735d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViews == null) { 6736d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews = new SparseArray<View>(); 6737d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6738d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews.put(position, scrap); 6739d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6740d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Otherwise, we'll have to remove the view and start over. 6741539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6742539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6743539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6744539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6745539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6746d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6747d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mViewTypeCount == 1) { 6748d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mCurrentScrap.add(scrap); 6749d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6750d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mScrapViews[viewType].add(scrap); 67519b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 67529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67531e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Clear any system-managed transient state. 67541e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (scrap.isAccessibilityFocused()) { 67551e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette scrap.clearAccessibilityFocus(); 67561e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 67571e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 6758d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.setAccessibilityDelegate(null); 67599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6760d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mRecyclerListener != null) { 6761d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6762d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 67639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6767539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6768539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6769539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6770539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6771539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6772539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6773539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6774539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6775539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6776539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6777539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6778539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6779539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6780539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 67819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 67829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 67839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 67849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 67859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 67869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 67879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 67899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6790a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 67919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 67929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6793079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6794079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6795079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 67969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 67989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6799539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6800539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 68019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6802b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && 6803539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 68049b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 68059b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6806539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6807728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6808728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6809728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6810728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6811728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(mFirstActivePosition + i); 6812728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(id, victim); 6813728713258ffef4df053b85e0a3488334cbcba24cChet Haase } else { 6814728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6815728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6816728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6817728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(mFirstActivePosition + i, victim); 6818539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6819539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 68209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 68219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 68249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 68259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6826a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6827079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 68289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 68299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6830c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 68319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 68329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 68339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 68389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 68419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 68429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 68439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 68449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 68459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 68469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 68479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 68489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 68499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 68509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 68519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 68529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 68539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 68549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 68559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6857bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6858bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6859bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6860bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6861bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6862bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6863bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6864bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6865bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6866bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6867728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6868728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < mTransientStateViewsById.size(); i++) { 6869728713258ffef4df053b85e0a3488334cbcba24cChet Haase final View v = mTransientStateViewsById.valueAt(i); 6870728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (!v.hasTransientState()) { 6871728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.removeAt(i); 6872728713258ffef4df053b85e0a3488334cbcba24cChet Haase i--; 6873728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6874728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6875728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 68769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 68799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 68809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 68819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 68829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 68839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 68849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 68859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 68869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 68879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 68889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 68899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 68909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 689452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 689552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 689652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 689752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 689852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 689952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 690052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 690152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 690252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 690352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 690452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 690552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 690652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 690752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 690852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 690952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 691052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 691152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6912266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 691352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 691452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 691552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 691652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 691752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 691852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 691952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 692052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 692152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 692252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 692352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 692452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 692552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 69269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6927079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6928079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6929079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6930079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6931079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6932079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6933079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6934079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6935079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6936079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6937079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6938079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6939079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6941079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6942079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6943079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6944079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 69459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6946