AbsListView.java revision 2f3317a06dd4d39298dc3fd2bb8a4d36a5762e03
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 20499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 26c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 315fade8c69aef621312232ef0647502d7a63990b9Romain Guyimport android.os.Trace; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 33f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.text.InputType; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 60c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 61a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 65f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 66f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 67b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 68f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 69f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 70b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 72a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 74335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 75335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 80d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 81d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 82d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 93f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 97499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 98499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 101539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 102539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 25214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 25314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 25414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 25614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 275499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 276499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 278499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 279539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 280539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 281539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 282539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 283539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2852148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2862148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2872148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2882148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 299079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 300079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 301079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 302079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 303079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3590211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4151fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 49414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 49514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 49614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 50014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 545d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 546d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 547d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 548d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 549d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 576d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 578d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5836dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5846dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 585161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5864296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5874296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 59021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 59224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 59324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 59424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62489935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62989935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 651da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 652da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 653da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 654da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 655da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 659c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 660c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 661c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 662c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 663c1d7e770e123adfa992d013fa294693d077cbc78alanv 6644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6664e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 667da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 668b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 669b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 670a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 671b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 672b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 673ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 674ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 675ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 676ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 677ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6790b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6800b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6810b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 683e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 684e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 685e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 686e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 687e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 688e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 689e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 690e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 743e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 744e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 745e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 746e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 747e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 748e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 749e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 750e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 751e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 752e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 753e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 754e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8054e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 80720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 80820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 813d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 814d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 815df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 819d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 820d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8214296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8224296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8234296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8244296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 828d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 829d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 83689935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 83789935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 846d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 852539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 853539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 85514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 92682ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 92782ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 92882ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 95014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 989a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 990a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 991a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 992a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 993a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 994a798170f2abe198f806b12dd904830bc25257525Adam Powell } 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 100314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 103514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1054bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 105829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10625bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10635bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10655bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 106614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 10715bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 10785bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1079bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 108129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 10835bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10845bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1085f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 108914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1103bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1104bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1105bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 111529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 111629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 111729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 111829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 111929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 112029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 112129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 112229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 112329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 112429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 112829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 113029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 113229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1158f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1161f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11922bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11932bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11954ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11964ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 12000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 12010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 12030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 1210447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 1211447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette if (enabled && mFastScroller == null) { 1212447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette mFastScroller = new FastScroller(getContext(), this); 1213447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 1214447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 1215447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette if (mFastScroller != null) { 1216447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette mFastScroller.setEnabled(enabled); 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 125320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 125520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 125716bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 127320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 127420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 127520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 127620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 127720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 127820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 127920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 128020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12820ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 12830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12870ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return mFastScrollEnabled; 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 13010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13390ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette mFastScroller.onScroll(mFirstPosition, getChildCount(), mItemCount); 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13440a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1347a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13484e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13494e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13504e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13524e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1353d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1354d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1355d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1356d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13579c3e0e68260fe50456996d75304b73054cbde94aalanv return; 13584e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1359d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1360d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13668a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13678a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13688a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13698a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13708a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13718a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13728a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13738a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13748a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13758a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1376fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1377fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1378fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 137980943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1380fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1381fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1382fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 138380943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1384fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1385a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1386a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1387a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1388a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1389a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 139048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 139148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 139248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1393a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1394a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1395fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1396a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1397a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1398a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1399a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1400a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1401a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1402fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1403a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1404a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1405a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1406a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1407a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1408a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 140948d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14108a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14118a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14125b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 14135b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 14145b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 14155b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 14165b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 14175b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14185b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 14195b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 14205b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 14215b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 14225b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 14235b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 14245b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14255b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 14265b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14275b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14926bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1548a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 15492614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1550f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 155114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1571a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15722614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1573f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 157443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 157543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 157614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 157743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 157843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 157943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 158043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 158114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1582f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1594a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15952614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1596f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 159743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 159843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 159943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 160043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 160143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 160214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1614f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1615f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 16208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1636f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1646e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1647e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1648e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1649e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1650e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1651e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1652e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1653e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1654e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1655e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1656e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1657e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1658e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1659e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1660e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 166199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16727becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 16737becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 16747becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 16757becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 16767becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 16777becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 16787becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 16797becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 16807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 16817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 168499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 168599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 168699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 168799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 168899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 168999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1708a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1709a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17109a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17119a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17129a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17139a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 171414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17159a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17169a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17179a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17189a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17199a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 17209a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17212614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1723335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1724335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1725335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1726335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1741e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1750079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1752e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1761f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1762f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17692614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 17702614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1771a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1772a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1773a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1774a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1775a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1780d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1781d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 17870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1827b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1828b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1829b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1830b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1831b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1832b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1833b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1852161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1854e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1860079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19250b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 19320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 19330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 19340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 19350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 19508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 19518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 19688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 19708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1984da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1985da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1986da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1987da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1988ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1989da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1990da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1991ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1992da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1993da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1996d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1997d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1998d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1999d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2004f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2005f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2006f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2007f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2008f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2009f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2010f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20110ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 20122c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 20132c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 20142c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2015f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2030d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2031d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2032d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2033d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2034d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2035d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2036d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2042d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2043d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2044d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 214721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 214821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 21494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 215221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 21535fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 21545fade8c69aef621312232ef0647502d7a63990b9Romain Guy 215521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2158539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2159539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2160539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2161539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2162539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21694213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21704213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21714213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21724213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2174079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 217821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2179a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2180a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21844213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21854213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21864213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21874213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21884213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2194aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2195aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2196aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2197aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2198aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2199aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2200aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2201aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2202aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2203aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2204aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2205aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2206aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2207aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2208c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2209c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2210c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2211c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2212b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2213b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2214b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2215c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2216c1d7e770e123adfa992d013fa294693d077cbc78alanv 22175fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 22185fade8c69aef621312232ef0647502d7a63990b9Romain Guy 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2222c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2223c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 222450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 222550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 222650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 222750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 222850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 222950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 223050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 223150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 223250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 223350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 223450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 223550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2236c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2237c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2238c1d7e770e123adfa992d013fa294693d077cbc78alanv 2239c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22409c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 22419c3e0e68260fe50456996d75304b73054cbde94aalanv 22429c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22439c3e0e68260fe50456996d75304b73054cbde94aalanv return; 22449c3e0e68260fe50456996d75304b73054cbde94aalanv } 2245c1d7e770e123adfa992d013fa294693d077cbc78alanv 22469c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2247c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2248c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2249c1d7e770e123adfa992d013fa294693d077cbc78alanv 22509c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 22519c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 22529c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 22539c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 22549c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 22559c3e0e68260fe50456996d75304b73054cbde94aalanv } 22569c3e0e68260fe50456996d75304b73054cbde94aalanv 22579c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2258c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2259c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2260c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2261c1d7e770e123adfa992d013fa294693d077cbc78alanv 22629c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2263c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2264c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2265c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2266c1d7e770e123adfa992d013fa294693d077cbc78alanv 2267c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2268c1d7e770e123adfa992d013fa294693d077cbc78alanv 2269c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2270c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2271fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2272fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2273fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2274fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2275c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22769c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2277c1d7e770e123adfa992d013fa294693d077cbc78alanv 22789c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22799c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2280c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2281c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2282c1d7e770e123adfa992d013fa294693d077cbc78alanv 22839c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 22849c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2285fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2286fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2287fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2288c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2289c1d7e770e123adfa992d013fa294693d077cbc78alanv 2290c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 22919c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 22929c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 22939c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 22949c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22959c3e0e68260fe50456996d75304b73054cbde94aalanv } 22969c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2297fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 22989c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 22999c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23009c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23019c3e0e68260fe50456996d75304b73054cbde94aalanv } 23029c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2303fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2304fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2305c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2306c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2307fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2308fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2309fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2310c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2311c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2312fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2313c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2314c1d7e770e123adfa992d013fa294693d077cbc78alanv 2315fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2316c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2317c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2318c1d7e770e123adfa992d013fa294693d077cbc78alanv 2319079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2320079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2321079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2322079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2323079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2326e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2327e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2328e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2335a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2336079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2337079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 237820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 237920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 238020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 238120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 238220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 238320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 238420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 238520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 238620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 238720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 238820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 238920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 239020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 239120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 239220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 239320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 239420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 239520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 239620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 239720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 239820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 239920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 240020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 240120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 240220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2408d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 243774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2441079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2485079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2503df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2504df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2505df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2506df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2510079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2514ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2515ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2516ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2517ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2524df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2525df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2545079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2546079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2547079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2548079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2549079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2550079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2551079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2552079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2553079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2554079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2558079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2601e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2602e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2603e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2604e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2605e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2606e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26110e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26120e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26130e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 261682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 261782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 261882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 26196a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 26206a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 26216a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 26226a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 26236a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 262482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2625b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26321f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 26331f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 26341f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 263521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 263621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 263721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26390e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 26400e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 26419d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 26420e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 264482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2645bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 264682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 264782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 264882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 26491cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26501cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 26511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 26521cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 26531cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 26541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 26561cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 26571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 26581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2659d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2660d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2661d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2662d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2663d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2664d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 26654032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2666d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2667d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2668d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2669d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2670d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2671d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2672d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2673d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2674d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2675d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2676d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2677d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2678a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2679d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2680b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2691670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2692670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2693670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2694670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2695670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 26964032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 26974032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 26984032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27010fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2705670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 271497566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27383a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 27393a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 27403a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 27413a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 27423a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio if (mFastScroller != null) { 27433a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio mFastScroller.setScrollbarPosition(getVerticalScrollbarPosition()); 27443a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 27453a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 27463a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 27690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 277529219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2788005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2789005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2790005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2791005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2792005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 27937890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 27947890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 27957890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 27967890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 27977890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 27987890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 28048fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 28288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28518350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 28551e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 28561e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 28581e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2883fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2884fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2885fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2886fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2887fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2888fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2889fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2890fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2891fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2892fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2893fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2894fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2895fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2896fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2897fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2922df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2923df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2924df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2925df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2926df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 292824d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 2929dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2930dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2931dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2932df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2933dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2935dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 293745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 293845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 293945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 294045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3012079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3013e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 304978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 305578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 305678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 305778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 305878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 306374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 307013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 307113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 307213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 307313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 307478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 308178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 308278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 308478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 308578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 310078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 310178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 312778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 313278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3163a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3169a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3207a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 321278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3213a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 32209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 32219d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 32229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 32269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32581e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32654032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32664032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32674032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 32710fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3281dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3282dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3283dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3284dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3285dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3286dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 32871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 32881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 32891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 32901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 329128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 329228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 329328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 329428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 329528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 329628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 329728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 329828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 330582f3495b146b267f3786997752cef25310176349Romain Guy 330613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 33108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 33118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 33128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 33138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 33178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 33188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 33218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 33228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 33238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3325e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 33268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 33278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 33288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3330e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 33318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 33328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 33338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 33348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 33358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 33368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 33378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 33388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 33398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 33408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 33418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 33438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3345fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 33468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 33478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 33488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 33498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 33508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 33518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 33528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 33538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 33548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 33558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 33568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 33578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 33588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 33598fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 33608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 33618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 33628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33638fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 33648fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3365fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3366e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3368e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3369e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3370e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3371e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 33723d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 33733d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 33743d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 33753d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3376e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3377e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3378e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3379e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3380e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3381e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 33823d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 33833d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3384e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3385e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 33863d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3387e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3388e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3389e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 33903d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3391e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 33923d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 33933d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 33943d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 33953d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 33963d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 33973d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 33983d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 33993d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 34003d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 34013d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 34023d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3403e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 34043d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3405e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3406e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3407e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3408e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34093d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3410e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3411e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34122585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34136f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3414e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3415e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 34163d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3417e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 34186f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 34193d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3420e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3421e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3422e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3423e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3424e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34256f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34263d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (performButtonActionOnTouchDown(ev) && (mTouchMode == TOUCH_MODE_DOWN)) { 34273d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3428e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3429e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3430e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3431e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3432e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3433e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3434e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3435e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3436e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3437e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3438e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3439e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3440e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3441e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3442e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3443e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 34458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3446e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 34478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 34488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 34498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 34508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 345174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 345274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 345374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 345474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 345574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 345674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 34573d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 34583d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 345974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 346074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 346174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 346274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 346374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 346474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 346574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 346674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 346774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 346874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 34698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 34718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 34728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 34738fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3475e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3477e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3478e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3479e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3480e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3481e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3482e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3483e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 348474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3485e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3486e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3487e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3488e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 348974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 349074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 349174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 349274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 349374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 349474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3495e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 349674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 349774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 349874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 350374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3504e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 350574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 350674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 350774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 350874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 350974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 351074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 351174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 351274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 351374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 351474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 351574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 351674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 351974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 352074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 352174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 352274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 352374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 352474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 352574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 352674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 352774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 352874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 352974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged) { 353074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 353174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 353274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 353374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 353474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 353574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 353674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 353774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 353874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 353974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 354074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 354174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 354274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3545e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3546e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3547e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3548e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3549e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3550e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3551e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3552e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3553e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3554e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3555e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3556e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3557e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3558e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3559e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3560e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3561e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3562e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3563e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3564e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3565e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3566e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3567e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3568e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3569e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3570e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3571e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3572e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3573e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3574e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3575e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3576e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3577e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3578e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3579e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3580e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3581e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3582e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 35836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 35846198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3585e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3586e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3587e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3588e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3589e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 35906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3593e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3594e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3595e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3597e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3600e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3601e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3604e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3605e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3607e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3608e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3609e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3610e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3611e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3614e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3615e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3617e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3620e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3621e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3624e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3625e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 362674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3627e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3629e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3631e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3632e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3633e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3634e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3636e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3638e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3639e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3640e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 36414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3642e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3644e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3645e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3646e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3647e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3648e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 36494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3650e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 36514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36529bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3653e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3654e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 36559bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3656e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3657e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3658e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 366074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3661e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3662e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3663e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3664e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 366574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3666e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3670e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3671e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3672e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3673e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 36780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 36790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 36800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 36810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 36820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 36830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 368833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 368933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 369033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 369133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 369233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 369333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 369433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 369533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3696275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 369733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 369833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 369933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 370533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 370733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3710637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3711637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 371407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 371507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 371607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 37199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3720a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 37229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3723a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3725637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 372907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 373007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 373107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37349d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 37359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 37369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3737e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3738a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 37409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3741a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3742a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 374907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 375007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 375107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 375207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 375307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 375407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 375507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 375607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 375713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 375813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 375913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 376013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 376113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 376213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 376513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 376613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 376713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 376813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 377113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 377213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 377313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 377413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 377513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 377813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 377913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 378013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 378113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 378213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 378313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 378413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 378513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3787a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 3788a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptHoverEvent(event)) { 3789a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 3790a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3791a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3792a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 3793a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3794a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3795a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 37990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 38011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 38021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 38031fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 380428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 380528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 380628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 380728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 380828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 380928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 381028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 381128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 38120ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptTouchEvent(ev)) { 38130ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 381879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 38254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 38264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 38274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 382979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 384113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 384213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 384379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 38444b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 38454b4f40f84e72579417604143e5f42115769649b8Romain Guy } 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38522585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38532585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38542585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38552585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38562585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 385813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 385913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 386078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 386813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 38714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 387213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 38784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 38794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 38874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 38884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 38894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 38904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 38914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 38924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 38934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 38944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 38954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 38964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 38984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 38994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 39350046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3957d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 39588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 3959d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3960d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3961d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3963d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3964d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3965d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3966d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3967d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3968d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3969d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3970b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3971b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3972d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3973d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3974d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3975d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3976d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3977b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3978d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3979d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3980d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3981d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3982d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3983d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 398479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 398879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 39910b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 39951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 40041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 40051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 40061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40131fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4016e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 40210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4022044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4023044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40261fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40414032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 40424032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 40434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 40444032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 40454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40540b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4060d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 406379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4064d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 406521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 406621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 406721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4068d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 40695e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 40705e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 40715e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 40725e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 40735e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4074d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4075d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4076d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4077d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40808fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 408279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 408379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4084d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4087d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4088d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4089d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4090d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4091d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 40937f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 40947f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 40957f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 40967f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 409779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 409879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 409979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 410079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4126d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4130d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 41399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 41409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41483cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 41493cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 41503cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4166d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4180044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4181044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4183637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4184044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4185044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4186044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4187044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4188044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4189044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4190044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4191044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4192044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4193044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4194044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4195044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4210e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4216e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 42174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 422352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4224e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4225e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 42264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4231e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 42324032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42334032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4234aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4235aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4236161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4237aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4238aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4239aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4240161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4241aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4242aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4243aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4244e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4245e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4246e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4247e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4248e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4249e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4251e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42534bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42540061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42550061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 42560061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 42580061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 42590061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4261458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42620061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42710061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4278e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 42794032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42804032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4286aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4287aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4288161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4289aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4290aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4291aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4292161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4293aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4294aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4295aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4296e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4297e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4298e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4299e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4300e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4301e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4303e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43054bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43060061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43070061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43140061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43230061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43300061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43400061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43490061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4355e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4356e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4357322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4358322171b333a1c796fcc1428a96ea1d854a3881faErik } 4359322171b333a1c796fcc1428a96ea1d854a3881faErik 4360aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43614032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43624032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4363aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4364aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4365aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4366161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4367aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4368aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4369aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4370161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4371aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4372aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4373aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4374aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4375aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4376aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4377aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4378aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4379aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 43801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 43811fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 43820061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4383e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4384e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4385e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4386e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4387e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4388e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4389371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4390e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43914bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43920061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 43930061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 43940061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 43950061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4396e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4397e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 43980061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 43990b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4400e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4401e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4402e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4403371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 44044ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 44050b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 44060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4407371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4408234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4410e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4411e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4412e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4413e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4414e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4415e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4416e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4417e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4418e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4419e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4420e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4421e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4422e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4423e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4424e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4425e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4426e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4427e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4428e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4429e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4430e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4431e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4432e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4433e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4434e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4435e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4436e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4437e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4438e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4439e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4440e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4441e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4442e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4443e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4444e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4445e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4446e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4447e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4448e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4449e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4450e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4451e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4452e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4453e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4454e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4455e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4456e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4457e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4458e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4459e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4460e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4461e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4462e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4463e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4464e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4465e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4466458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4469e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4471458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4473458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 44744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4475458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 44794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 44810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 44941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 44951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44971fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 44980b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45017e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 45021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4509029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4511029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4512029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 45261fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 45277e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 45290b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45331fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 45360b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 45500b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 45510b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45551fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45570b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45617e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45621fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45841fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45867e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 45870b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 45881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 45930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4599e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4600234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4601234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 46020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4603234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4604234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4605e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4606371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4607234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4608234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4609e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4610371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4611e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46124032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4613e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46144032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 46154032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 46164032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 46174032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46184032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46194032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 46204032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 46214032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46224032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 46234032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 46240b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 46250b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46260b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4628e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 46290b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 46300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46310b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46321fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4633e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4634e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4635e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4636234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 46370b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 46380b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 46390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4640e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4641e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4642e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4643e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4647458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 46514bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 46524bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 46534bede9e425875542976a422222510fa4056a8339Romain Guy */ 46544bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46554bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46564bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46574bede9e425875542976a422222510fa4056a8339Romain Guy } 46584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46594bede9e425875542976a422222510fa4056a8339Romain Guy } 466021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 466121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 466221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 466321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 46644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 466521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 466621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 466721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 466821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 466921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 46704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46714bede9e425875542976a422222510fa4056a8339Romain Guy /** 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4682322171b333a1c796fcc1428a96ea1d854a3881faErik 4683322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4684322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4685322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4686322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4687322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4688322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4689322171b333a1c796fcc1428a96ea1d854a3881faErik * 4690322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4691322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4692322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4693322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4694322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4695322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4696322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4697322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4698322171b333a1c796fcc1428a96ea1d854a3881faErik } 4699322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4700322171b333a1c796fcc1428a96ea1d854a3881faErik } 4701322171b333a1c796fcc1428a96ea1d854a3881faErik 4702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4703e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4704e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4705e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4706e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4707e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4708e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4709e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4710e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4711e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4712e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4713e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4714e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4715e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4716e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4717e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4718e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4719e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4720e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 47244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 47420b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 47430b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 47440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 47450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47494032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4750299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47514032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47524032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47534032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47544032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47554032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47564032252c997be9f5d013054dc23ace855007b3a5Adam Powell 475779303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47584032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4759aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 47604032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 47614032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 47624032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47634032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47644032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47654032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 47660046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 47670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4768299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4771499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4772499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4773499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4774499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4775499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4776499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4777499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4778499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4779499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4780499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4781499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4782499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4783499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4784499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4785499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4786499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4787499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4788499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4789499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4790499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4791499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4792499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4793499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4794499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4795499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4796499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4797499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4798499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4799499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4800499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4801499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4802499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4803499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4804499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4805499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4806499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 48089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48110211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 48169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 48179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 48189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 48198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 48209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 48219d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 48229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 48239d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 48249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 48259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 48269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 48289d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 48299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48306dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48316dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48329d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 48339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48349d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48392f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 48402f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 48412f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * @param y the amount of pixels to scroll by vertically 48422f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * @return true if the list is able to scroll, or false if the list is 48432f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * already at the beginning/end and unable to scroll any more. 48442f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 48452f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette public boolean scrollListBy(int y) { 48462f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette return !trackMotionScroll(-y, -y); 48472f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette } 48482f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette 48492f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette /** 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4868bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4869bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4870bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4871bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4872bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4873bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4874bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4875bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4876bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4877bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4879bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4880bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4900bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4905bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 49100a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 49110a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 49120a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 49130a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49150a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4921029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4922029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4923029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4924029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 49338c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 49348c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49358c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 49368c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4945079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 49508c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 49518c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49528c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 49538c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4963079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4975539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4977539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 49789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 49799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 49809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 49811fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 49829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4995029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 49962a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 49972a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4998079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4999079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5000079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5001079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5002079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5003079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 50042a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5005079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5006079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5007029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5008029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 50124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5048ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5049ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5050ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 50794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51088fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 51094e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 51108d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 51118d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 51124e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 51138d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5114becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5115becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5116becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 51174e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51188d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 51194e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 52154032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 52164032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 52174032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 52243c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 523514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 523614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 523714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 523814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 523914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 524014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 524114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 524214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 524314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 524414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 524514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 524614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 524714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 524814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 524914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 525014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 525114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 525214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 525314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 525414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 525514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 525614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 525714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 526014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 526114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 526214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 526314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 526414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 526514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 526614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 526714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 526814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 526914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 527114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 527214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 527514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 527614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 527714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5283ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5284ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 528614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 528714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 528814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 529314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 529414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5301e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53030785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5306da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5307da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5308da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5309da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5310da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5311da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 53120785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5313ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 53140785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 53150785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5316ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5317ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 53180785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 53190785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 53200785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53210785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 53220785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 53230785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 53240785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5417e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5418079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 542243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 542343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 542443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 542543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 542643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 542743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 542843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 542943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 543043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 543143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 543243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 543343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 543443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 543543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 543643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 543724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 543843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 543943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5443d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 54554df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5456b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5462b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 546624443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5469b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55154e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 55164e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 55174e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 55184e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 55194e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 55204e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 55214e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 55244e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 55254e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5546b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 556283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55638d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55648d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5565b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5566b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5567b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5568b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 556983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 557083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 557183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 557283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 557383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 557483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5580cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5584b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5589105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5611b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5612b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5613b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5614b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5615c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 56161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 56171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 5618f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mPublicInputConnection = new InputConnectionWrapper(outAttrs); 56191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5620f69913056b8c6000ff0306573a97971702e8d35aRomain Guy outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 56211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 56221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5623c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5624c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5625b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5627f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private class InputConnectionWrapper implements InputConnection { 5628f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private final EditorInfo mOutAttrs; 5629f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection mTarget; 5630f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5631f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public InputConnectionWrapper(EditorInfo outAttrs) { 5632f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mOutAttrs = outAttrs; 5633f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5634f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5635f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection getTarget() { 5636f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) { 5637f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5638f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5639f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget; 5640f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5641f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5642f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5643f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean reportFullscreenMode(boolean enabled) { 5644f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since it is 5645f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the "real" one the IME is talking with. 5646f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.reportFullscreenMode(enabled); 5647f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5648f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5649f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5650f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performEditorAction(int editorAction) { 5651f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // The editor is off in its own window; we need to be 5652f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the one that does this. 5653f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (editorAction == EditorInfo.IME_ACTION_DONE) { 5654f69913056b8c6000ff0306573a97971702e8d35aRomain Guy InputMethodManager imm = (InputMethodManager) 5655f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5656f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (imm != null) { 5657f69913056b8c6000ff0306573a97971702e8d35aRomain Guy imm.hideSoftInputFromWindow(getWindowToken(), 0); 5658f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5659f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return true; 5660f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5661f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return false; 5662f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5663f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5664f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5665f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean sendKeyEvent(KeyEvent event) { 5666f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since the filter 5667f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // text view may not be shown in a window so has 5668f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // no ViewAncestor to dispatch events with. 5669f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.sendKeyEvent(event); 5670f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5671f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56720ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5673f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextBeforeCursor(int n, int flags) { 5674f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5675f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextBeforeCursor(n, flags); 5676f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5677f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56780ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5679f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextAfterCursor(int n, int flags) { 5680f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5681f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextAfterCursor(n, flags); 5682f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5683f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56840ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5685f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getSelectedText(int flags) { 5686f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5687f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getSelectedText(flags); 5688f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5689f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56900ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5691f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public int getCursorCapsMode(int reqModes) { 5692f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5693f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getCursorCapsMode(reqModes); 5694f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5695f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56960ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5697f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5698f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().getExtractedText(request, flags); 5699f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5700f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57010ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5702f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5703f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().deleteSurroundingText(beforeLength, afterLength); 5704f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5705f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57060ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5707f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingText(CharSequence text, int newCursorPosition) { 5708f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingText(text, newCursorPosition); 5709f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5710f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57110ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5712f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingRegion(int start, int end) { 5713f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingRegion(start, end); 5714f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5715f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57160ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5717f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean finishComposingText() { 5718f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget == null || mTarget.finishComposingText(); 5719f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5720f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57210ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5722f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitText(CharSequence text, int newCursorPosition) { 5723f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitText(text, newCursorPosition); 5724f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5725f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57260ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5727f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCompletion(CompletionInfo text) { 5728f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCompletion(text); 5729f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5730f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57310ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5732f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCorrection(CorrectionInfo correctionInfo) { 5733f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCorrection(correctionInfo); 5734f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5735f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57360ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5737f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setSelection(int start, int end) { 5738f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setSelection(start, end); 5739f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5740f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57410ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5742f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performContextMenuAction(int id) { 5743f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performContextMenuAction(id); 5744f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5745f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57460ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5747f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean beginBatchEdit() { 5748f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().beginBatchEdit(); 5749f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5750f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57510ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5752f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean endBatchEdit() { 5753f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().endBatchEdit(); 5754f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5755f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57560ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5757f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean clearMetaKeyStates(int states) { 5758f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().clearMetaKeyStates(states); 5759f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5760f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57610ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5762f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performPrivateCommand(String action, Bundle data) { 5763f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performPrivateCommand(action, data); 5764f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5765f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5766f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5767b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5768b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5769b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5770b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5771b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5772b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5773b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5774b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 57750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5776b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 5783f69913056b8c6000ff0306573a97971702e8d35aRomain Guy PopupWindow p = new PopupWindow(getContext()); 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5787f69913056b8c6000ff0306573a97971702e8d35aRomain Guy p.setContentView(getTextFilterInput()); 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5793d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5802f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private EditText getTextFilterInput() { 5803f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTextFilter == null) { 5804f69913056b8c6000ff0306573a97971702e8d35aRomain Guy final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5805f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter = (EditText) layoutInflater.inflate( 5806f69913056b8c6000ff0306573a97971702e8d35aRomain Guy com.android.internal.R.layout.typing_filter, null); 5807f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // For some reason setting this as the "real" input type changes 5808f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the text view in some way that it doesn't work, and I don't 5809f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // want to figure out why this is. 5810f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5811f69913056b8c6000ff0306573a97971702e8d35aRomain Guy | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5812f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5813f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.addTextChangedListener(this); 5814f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5815f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTextFilter; 5816f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5817f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 5823f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getTextFilterInput().setText(""); 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 584224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 584743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 58641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 58651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5869f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (isTextFilterEnabled()) { 5870f69913056b8c6000ff0306573a97971702e8d35aRomain Guy createTextFilter(true); 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 58791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5912aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5913aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5914aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5915aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5916aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5917aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 59409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59635be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 59645be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 59655be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 59665be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 59675be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 59689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 597252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 597352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 597452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 597552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 597652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 597752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 597852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 597952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59887b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 600713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 6011c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 60199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 6023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 6024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 6025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 6026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 602913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6030499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6031499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6032499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6033499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6034499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 60359b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 60369b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 60373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 60383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 60393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 60403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 60413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 60423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 60433ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 60449b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 60452148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60469b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6047499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6048335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 6049335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 6050335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 6051499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6052499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6053499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6054a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 60550ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6056a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 60570ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6058a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 6059a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 6060a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6061a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6062a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 6063a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 6064a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6065a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6066a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6067a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6068a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 60692148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 60702148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 60712148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 60728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60732148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 60742148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 60752148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 60762148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 60772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6078499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6079499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 60808fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 608116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6082499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6083499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 60842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 60852148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 60862148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60872148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 608816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6089fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6090fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 609116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6092499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 609316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6094499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6095499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6096499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6097499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6098499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 60998fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6100499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6101fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6102fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6103fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6104fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6105fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6106499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6107499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6108499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6109b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6110b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6111b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6112b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6113b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6114b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6115b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6116b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6117b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6118b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6133b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6134b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6135b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6136b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6137b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6138b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6139b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6140b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6141b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6142b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6143b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6144b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6145b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6146b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6147b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6148b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6149b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6150b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 61519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6178a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6179a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6180a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6181a798170f2abe198f806b12dd904830bc25257525Adam Powell 61828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 62028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 62178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6237bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 62389bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 62399bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 62409bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 62444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 62454df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 62464df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 62474df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 62484df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6249bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 62504df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 62514df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 62520bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 62530bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 62540bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 62550bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 62560bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 62570bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 62580bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 62590bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6260bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 62610bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 62620bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6263079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6264079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6265079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6266079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6267079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6268079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6269079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6271539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 63209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 63239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 63249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 63279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 63299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 63329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 63339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 63349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 63359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6347539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6348539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6349539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6350728713258ffef4df053b85e0a3488334cbcba24cChet Haase private LongSparseArray<View> mTransientStateViewsById; 6351539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 63539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 63549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 63559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 63579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 63589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 63599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 63629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6366f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6367f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6368f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6369f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6370f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6371f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6372f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6373f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6374f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6375f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6376f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6377f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6378f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6379f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6380f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6381f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6382f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6383539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6384539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6385539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6386539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6387539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6388539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6389728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6390728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int count = mTransientStateViewsById.size(); 6391728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < count; i++) { 6392728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.valueAt(i).forceLayout(); 6393728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6394728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6395f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 63960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 64079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 64089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 64099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 64179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6421539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6422539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6423539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6424728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6425728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6426728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 64319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 64339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 64349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 64359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6442f69913056b8c6000ff0306573a97971702e8d35aRomain Guy //noinspection MismatchedReadAndWriteOfArray 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 64469c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 64489c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 64514df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 64589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 64599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 64619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 64629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 64649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 64659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 64679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 64689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 64699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 64709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 64729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6474539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6475728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6476728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(position); 6477728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViewsById.get(id); 6478728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.remove(id); 6479728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6480539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6481728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews != null) { 6482728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int index = mTransientStateViews.indexOfKey(position); 6483728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (index >= 0) { 6484728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViews.valueAt(index); 6485728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.removeAt(index); 6486728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6487728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6488539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6489728713258ffef4df053b85e0a3488334cbcba24cChet Haase return null; 6490539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6491539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6492539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6493539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6494539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6495539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6496539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6497539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6498539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6499728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6500728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6501728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6502539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6503539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6513079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 65179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6520d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * Puts a view into the list of scrap views. 6521d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * <p> 6522d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6523d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * with transient state will be preserved for later retrieval. 65249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 6526d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * @param position The view's position within its parent 65279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6528079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 6529d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 65309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 65319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 65329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6534539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6535539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6536d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Don't scrap header or footer views, or views that should 6537d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // otherwise not be recycled. 6538d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final int viewType = lp.viewType; 6539d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (!shouldRecycleViewType(viewType)) { 6540d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette return; 6541d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6542d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6543d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.dispatchStartTemporaryDetach(); 6544d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6545d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Don't scrap views that have transient state. 6546539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6547d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (scrapHasTransientState) { 6548d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6549d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the adapter has stable IDs, we can reuse the view for 6550d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // the same data. 6551d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViewsById == null) { 6552d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6553d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6554d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6555d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else if (!mDataChanged) { 6556d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the data hasn't changed, we can reuse the views at 6557d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // their old positions. 6558d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViews == null) { 6559d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews = new SparseArray<View>(); 6560d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6561d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews.put(position, scrap); 6562d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6563d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Otherwise, we'll have to remove the view and start over. 6564539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6565539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6566539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6567539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6568539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6569d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6570d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mViewTypeCount == 1) { 6571d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mCurrentScrap.add(scrap); 6572d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6573d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mScrapViews[viewType].add(scrap); 65749b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6576d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.setAccessibilityDelegate(null); 65779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6578d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mRecyclerListener != null) { 6579d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6580d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 65819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6585539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6586539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6587539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6588539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6589539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6590539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6591539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6592539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6593539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6594539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6595539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6596539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6597539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6598539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 65999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 66009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 66029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 66039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 66049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 66059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 66079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6608a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 66099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 66109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6611079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6612079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6613079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 66149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 66169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6617539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6618539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 66199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6620b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && 6621539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 66229b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 66239b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6624539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6625728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6626728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6627728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6628728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6629728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(mFirstActivePosition + i); 6630728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(id, victim); 6631728713258ffef4df053b85e0a3488334cbcba24cChet Haase } else { 6632728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6633728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6634728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6635728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(mFirstActivePosition + i, victim); 6636539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6637539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 66389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 66399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 66429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 66439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6644a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6645079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 66469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 66479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6648c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 66499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 66509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 66519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 66569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 66609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 66619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 66639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 66649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 66659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 66669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 66679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 66689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 66699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 66709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 66719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 66729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 66739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6675bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6676bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6677bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6678bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6679bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6680bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6681bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6682bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6683bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6684bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6685728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6686728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < mTransientStateViewsById.size(); i++) { 6687728713258ffef4df053b85e0a3488334cbcba24cChet Haase final View v = mTransientStateViewsById.valueAt(i); 6688728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (!v.hasTransientState()) { 6689728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.removeAt(i); 6690728713258ffef4df053b85e0a3488334cbcba24cChet Haase i--; 6691728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6692728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6693728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 66949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 66989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 67009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 67019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 67029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 67039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 67049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 67059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 67069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 67079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 67089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 671152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 671252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 671352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 671452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 671552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 671652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 671752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 671852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 671952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 672052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 672152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 672252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 672352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 672452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 672552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 672652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 672752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 672852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 672952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6730266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 673152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 673252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 673352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 673452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 673552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 673652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 673752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 673852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 673952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 674052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 674152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 674252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 674352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 67449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6745079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6746079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6747079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6748079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6749079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6750079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6751079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6752079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6753079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6754079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6755079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6756079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6757079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6758079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6759079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6761079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6762079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 67639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6764