AbsListView.java revision 5fade8c69aef621312232ef0647502d7a63990b9
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 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@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; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 125320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 125420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 125520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 125916bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 126520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 127520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 127620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 127720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 127820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 127920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 128020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 128120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 128220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12840ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 12850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12890ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return mFastScrollEnabled; 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 13030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13410ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette mFastScroller.onScroll(mFirstPosition, getChildCount(), mItemCount); 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13460a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13504e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13524e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13534e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13544e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1355d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1356d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1357d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1358d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13599c3e0e68260fe50456996d75304b73054cbde94aalanv return; 13604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1361d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1362d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13664e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13674e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13688a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13698a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13708a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13718a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13728a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13738a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13748a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13758a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13768a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13778a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1378fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1379fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1380fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 138180943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1382fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1383fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1384fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 138580943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1386fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1387a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1388a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1389a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1390a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1391a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 139248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 139348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 139448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1395a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1396a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1397fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1398a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1399a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1400a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1401a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1402a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1403a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1404fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1405a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1406a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1407a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1408a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1409a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1410a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 141148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14128a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14138a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14145b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 14155b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 14165b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 14175b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 14185b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 14195b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14205b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 14215b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 14225b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 14235b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 14245b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 14255b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 14265b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14275b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 14285b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14295b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14946bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1550a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 15512614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1552f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 155314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1573a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15742614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1575f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 157643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 157743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 157814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 157943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 158043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 158143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 158243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 158314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1584f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1596a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15972614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1598f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 159943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 160043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 160143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 160243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 160343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 160414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1616f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1617f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 16228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1638f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1648e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1649e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1650e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1651e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1652e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1653e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1654e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1655e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1656e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1657e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1658e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1659e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1660e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1661e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1662e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 166399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16747becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 16757becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 16767becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 16777becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 16787becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 16797becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 16807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 16817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 16827becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 16837becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 168699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 168799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 168899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 168999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 169099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 169199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1710a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1711a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17129a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17139a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17149a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17159a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 171614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17179a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17189a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17199a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17209a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17219a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 17229a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17232614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1725335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1726335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1727335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1728335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1743e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1752079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1754e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1770f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17712614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 17722614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1773a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1774a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1775a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1776a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1777a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1782d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1783d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 17890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1829b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1830b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1831b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1832b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1833b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1834b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1835b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1854161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1856e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1862079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19280b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19290b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 19340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 19350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 19360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 19370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 19528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 19538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 19708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 19728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1986da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1987da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1988da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1989da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1990ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1991da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1992da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1993ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1994da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1995da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1998d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1999d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2000d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2001d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2006f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2007f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2008f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2009f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2010f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2011f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2012f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20130ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 20142c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 20152c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 20162c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2017f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2031d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2032d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2033d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2034d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2035d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2036d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2037d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2038d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2044d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2045d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2046d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 214921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 215021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 21514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 215421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 21555fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 21565fade8c69aef621312232ef0647502d7a63990b9Romain Guy 215721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2160539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2161539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2162539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2163539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2164539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21714213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21724213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21734213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21744213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2176079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 218021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2181a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2182a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21864213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21874213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21884213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21894213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21904213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2196aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2197aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2198aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2199aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2200aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2201aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2202aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2203aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2204aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2205aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2206aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2207aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2208aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2209aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2210c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2211c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2212c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2213c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2214b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2215b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2216b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2217c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2218c1d7e770e123adfa992d013fa294693d077cbc78alanv 22195fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 22205fade8c69aef621312232ef0647502d7a63990b9Romain Guy 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2224c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2225c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 222650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 222750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 222850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 222950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 223050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 223150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 223250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 223350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 223450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 223550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 223650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 223750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2238c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2239c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2240c1d7e770e123adfa992d013fa294693d077cbc78alanv 2241c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22429c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 22439c3e0e68260fe50456996d75304b73054cbde94aalanv 22449c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22459c3e0e68260fe50456996d75304b73054cbde94aalanv return; 22469c3e0e68260fe50456996d75304b73054cbde94aalanv } 2247c1d7e770e123adfa992d013fa294693d077cbc78alanv 22489c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2249c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2250c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2251c1d7e770e123adfa992d013fa294693d077cbc78alanv 22529c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 22539c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 22549c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 22559c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 22569c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 22579c3e0e68260fe50456996d75304b73054cbde94aalanv } 22589c3e0e68260fe50456996d75304b73054cbde94aalanv 22599c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2260c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2261c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2262c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2263c1d7e770e123adfa992d013fa294693d077cbc78alanv 22649c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2265c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2266c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2267c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2268c1d7e770e123adfa992d013fa294693d077cbc78alanv 2269c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2270c1d7e770e123adfa992d013fa294693d077cbc78alanv 2271c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2272c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2273fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2274fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2275fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2276fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2277c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22789c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2279c1d7e770e123adfa992d013fa294693d077cbc78alanv 22809c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22819c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2282c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2283c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2284c1d7e770e123adfa992d013fa294693d077cbc78alanv 22859c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 22869c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2287fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2288fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2289fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2290c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2291c1d7e770e123adfa992d013fa294693d077cbc78alanv 2292c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 22939c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 22949c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 22959c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 22969c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22979c3e0e68260fe50456996d75304b73054cbde94aalanv } 22989c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2299fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23009c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23019c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23029c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23039c3e0e68260fe50456996d75304b73054cbde94aalanv } 23049c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2305fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2306fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2307c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2308c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2309fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2310fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2311fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2312c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2313c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2314fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2315c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2316c1d7e770e123adfa992d013fa294693d077cbc78alanv 2317fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2318c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2319c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2320c1d7e770e123adfa992d013fa294693d077cbc78alanv 2321079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2322079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2323079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2324079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2325079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2328e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2329e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2330e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2337a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2338079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2339079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 238020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 238120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 238220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 238320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 238420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 238520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 238620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 238720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 238820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 238920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 239020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 239120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 239220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 239320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 239420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 239520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 239620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 239720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 239820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 239920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 240020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 240120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 240220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 240320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 240420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2410d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 243974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2443079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2487079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2505df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2506df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2507df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2508df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2512079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2516ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2517ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2518ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2519ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2526df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2527df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2547079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2548079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2549079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2550079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2551079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2552079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2553079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2554079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2555079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2556079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2560079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2603e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2604e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2605e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2606e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2607e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2608e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26130e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26140e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26150e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 261882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 261982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 262082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 26216a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 26226a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 26236a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 26246a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 26256a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 262682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2627b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26341f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 26351f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 26361f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 263721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 263821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 263921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26410e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 26420e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 26439d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 26440e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 264682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2647bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 264882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 264982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 265082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 26511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26521cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 26531cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 26541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 26551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 26561cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 26581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 26591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 26601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2661d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2662d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2663d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2664d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2665d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2666d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 26674032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2668d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2669d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2670d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2671d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2672d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2673d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2674d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2675d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2676d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2677d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2678d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2679d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2680a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2681d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2682b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2693670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2694670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2695670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2696670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2697670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 26984032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 26994032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27004032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27030fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2707670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 271697566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27403a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 27413a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 27423a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 27433a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 27443a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio if (mFastScroller != null) { 27453a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio mFastScroller.setScrollbarPosition(getVerticalScrollbarPosition()); 27463a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 27473a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 27483a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 27710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 277729219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2790005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2791005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2792005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2793005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2794005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 27957890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 27967890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 27977890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 27987890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 27997890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 28007890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 28068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 28308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28538350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 28571e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 28581e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 28601e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2885fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2886fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2887fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2888fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2889fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2890fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2891fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2892fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2893fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2894fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2895fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2896fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2897fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2898fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2899fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2924df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2925df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2926df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2927df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2928df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2933dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2934dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2935dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2936df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2937dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2939dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 294145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 294245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 294345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 294445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2948dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3016079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3017079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3018e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 305178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 306178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 306278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 306378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 306478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 306578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 306874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 307513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 307613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 307713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 307813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 307978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 310078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 310178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 312678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 312778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 313178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 313278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3168a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3174a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 320778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3212a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 321378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3218a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 32259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 32269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 32279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 32319d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32631e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32704032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32714032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32724032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 32760fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3286dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3287dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3288dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3289dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3290dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3291dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 32921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 32931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 32941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 32951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 329628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 329728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 329828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 329928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 330028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 330128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 330228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 330328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 331082f3495b146b267f3786997752cef25310176349Romain Guy 331113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 33158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 33168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 33178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 33188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 33228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 33238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 33268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 33278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 33288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3330e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 33318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 33328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 33338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3335e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 33368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 33378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 33388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 33398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 33408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 33418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 33428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 33438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 33448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 33458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 33468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 33488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3350fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 33518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 33528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 33538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 33548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 33558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 33568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 33578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 33588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 33598fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 33608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 33618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 33628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 33638fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 33648fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 33658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 33668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 33678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 33698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3370fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3371e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3373e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3374e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3375e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3376e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 33773d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 33783d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 33793d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 33803d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3381e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3382e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3383e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3384e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3385e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3386e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 33873d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 33883d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3389e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3390e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 33913d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3392e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3393e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3394e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 33953d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3396e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 33973d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 33983d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 33993d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 34003d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 34013d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 34023d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 34033d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 34043d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 34053d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 34063d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 34073d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3408e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 34093d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3410e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3411e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3412e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3413e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34143d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3415e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3416e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34172585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34186f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3419e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3420e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 34213d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3422e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 34236f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 34243d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3425e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3426e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3427e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3428e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3429e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34306f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34313d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (performButtonActionOnTouchDown(ev) && (mTouchMode == TOUCH_MODE_DOWN)) { 34323d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3433e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3434e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3435e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3436e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3437e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3438e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3439e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3440e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3441e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3442e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3443e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3444e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3445e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3446e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3447e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3448e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 34508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3451e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 34528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 34538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 34548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 34558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 345674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 345774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 345874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 345974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 346074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 346174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 34623d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 34633d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 346474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 346574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 346674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 346774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 346874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 346974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 347074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 347174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 347274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 347374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 34748fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34758fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 34768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 34778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 34788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3480e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3482e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3483e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3484e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3485e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3486e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3487e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3488e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 348974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3490e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3491e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3492e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3493e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 349474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 349574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 349674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 349774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 349874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 349974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3500e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 350174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 350274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 350374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 350874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3509e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 351074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 351174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 351274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 351374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 351474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 351574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 351674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 351774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 351874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 351974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 352074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 352174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 352474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 352574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 352674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 352774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 352874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 352974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 353074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 353174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 353274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 353374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 353474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged) { 353574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 353674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 353774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 353874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 353974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 354074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 354174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 354274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 354374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 354474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 354574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 354674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 354774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3550e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3551e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3552e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3553e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3554e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3555e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3556e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3557e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3558e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3559e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3560e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3561e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3562e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3563e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3564e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3565e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3566e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3567e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3568e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3569e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3570e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3571e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3572e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3573e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3574e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3575e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3576e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3577e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3578e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3579e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3580e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3581e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3582e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3583e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3584e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3585e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3586e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3587e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 35886198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 35896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3590e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3591e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3592e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3593e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3594e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 35956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3598e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3599e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3600e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3602e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3604e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3605e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3606e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3608e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3609e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3610e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3612e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3613e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3614e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3615e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3616e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3620e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3622e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3624e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3625e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3626e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3630e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 363174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3632e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3634e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3636e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3637e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3638e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3639e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3641e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3643e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3644e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3645e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 36464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3647e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3649e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3650e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3651e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3652e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3653e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 36544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3655e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 36564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36579bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3658e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 36609bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3661e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3662e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3663e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3664e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 366574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3666e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3667e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3668e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3669e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 367074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3671e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3674e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3675e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3676e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3677e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3678e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 36830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 36840a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 36850a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 36860a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 36870a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 36880a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 369333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 369433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 369533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 369633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 369733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 369833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 369933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 370033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3701275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 370233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 370333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 371033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 371133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 371233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 371907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 372007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 372107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37239d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 37249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3725a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 37279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3728a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 373407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 373507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 373607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 37409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 37419d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3742e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3743a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 37459d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3746a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3747a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 375407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 375507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 375607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 375707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 375807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 375907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 376007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 376107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 376213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 376313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 376413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 376513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 376613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 376713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 377013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 377113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 377213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 377313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 377613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 377713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 377813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 377913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 378013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 378113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 378213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 378313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 378413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 378513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 378613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 378713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 378813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 378913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 379013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 37950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 37971fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 37981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 37991fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 380028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 380128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 380228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 380328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 380428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 380528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 380628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 380728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 38080ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptTouchEvent(ev)) { 38090ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 381479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 38214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 38224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 38234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 382579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 383713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 383813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 383979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 38404b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 38414b4f40f84e72579417604143e5f42115769649b8Romain Guy } 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38482585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38492585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38502585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38512585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38522585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 385413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 385513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 385678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 386413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 38674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 386813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 38744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 38754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 38834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 38844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 38854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 38864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 38874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 38884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 38894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 38904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 38914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 38924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 38944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 38954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 39310046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3953d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 39548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 3955d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3956d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3957d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3959d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3960d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3961d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3962d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3963d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3964d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3965d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3966b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3967b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3968d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3969d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3970d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3971d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3972d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3973b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3974d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3975d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3976d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3977d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3978d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3979d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 398079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 398479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 39870b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 39911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39991cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 40001cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 40011cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 40021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4012e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 40170b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4018044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4019044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40374032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 40384032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 40394032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 40404032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 40414032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4045637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40470b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4056d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 405979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4060d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 406121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 406221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 406321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4064d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 40655e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 40665e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 40675e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 40685e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 40695e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4070d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4071d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4072d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4073d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40768fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 407879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 407979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4080d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4083d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4084d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4085d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4086d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4087d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 40897f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 40907f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 40917f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 40927f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 409379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 409479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 409579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 409679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4122d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4126d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 41359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 41369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41443cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 41453cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 41463cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4162d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4176044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4177044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4180044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4181044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4182044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4183044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4184044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4185044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4186044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4187044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4188044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4189044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4190044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4191044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4206e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4212e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 42134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 421952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4220e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4221e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 42224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4225458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4227e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 42284032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42294032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4230aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4231aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4232161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4233aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4234aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4235aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4236161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4237aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4238aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4239aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4240e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4241e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4242e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4243e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4244e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4245e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4247e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42494bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42500061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42510061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 42520061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 42540061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 42550061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42580061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42670061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42711fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4274e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 42754032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42764032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4282aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4283aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4284161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4285aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4286aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4287aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4288161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4289aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4290aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4291aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4292e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4293e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4294e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4295e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4296e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4297e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4299e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43014bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43020061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43030061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43100061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43190061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43260061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43360061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43450061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4351e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4352e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4353322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4354322171b333a1c796fcc1428a96ea1d854a3881faErik } 4355322171b333a1c796fcc1428a96ea1d854a3881faErik 4356aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43574032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43584032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4359aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4360aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4361aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4362161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4363aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4364aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4365aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4366161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4367aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4368aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4369aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4370aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4371aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4372aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4373aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4374aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4375aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 43761fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 43771fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 43780061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4379e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4380e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4381e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4382e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4383e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4384e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4385371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4386e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43874bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43880061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 43890061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 43900061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 43910061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4392e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4393e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 43940061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 43950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4396e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4397e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4398e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4399371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 44004ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 44010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 44020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4403371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4404234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44051fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4406e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4407e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4408e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4409e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4410e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4411e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4412e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4413e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4414e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4415e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4416e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4417e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4418e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4419e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4420e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4421e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4422e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4423e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4424e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4425e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4426e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4427e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4428e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4429e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4430e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4431e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4432e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4433e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4434e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4435e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4436e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4437e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4438e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4439e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4440e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4441e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4442e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4443e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4444e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4445e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4446e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4447e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4448e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4449e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4450e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4451e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4452e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4453e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4454e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4455e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4456e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4457e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4458e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4459e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4460e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4461e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4464458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4465e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 44704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4471458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4473458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 44754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 44770b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44821fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 44901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 44911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 44940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 44977e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 44981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4505029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4507029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4508029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45151fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 45221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 45237e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 45250b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 45320b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 45460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 45470b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45480b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45530b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45577e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45581fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45827e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 45830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 45841fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 45890b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4595e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4596234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4597234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 45980b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4599234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4600234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4601e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4602371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4603234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4604234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4605e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4606371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4607e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46084032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4609e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46104032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 46114032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 46124032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 46134032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46144032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46154032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 46164032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 46174032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46184032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 46194032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 46200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 46210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46231fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4624e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 46250b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 46260b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46270b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46281fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4629e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4630e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4631e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4632234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 46330b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 46340b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 46350b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4636e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4637e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4638e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4639e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 46474bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 46484bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 46494bede9e425875542976a422222510fa4056a8339Romain Guy */ 46504bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46514bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46524bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46534bede9e425875542976a422222510fa4056a8339Romain Guy } 46544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46554bede9e425875542976a422222510fa4056a8339Romain Guy } 465621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 465721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 465821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 465921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 46604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 466121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 466221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 466321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 466421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 466521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 46664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46674bede9e425875542976a422222510fa4056a8339Romain Guy /** 4668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4678322171b333a1c796fcc1428a96ea1d854a3881faErik 4679322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4680322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4681322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4682322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4683322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4684322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4685322171b333a1c796fcc1428a96ea1d854a3881faErik * 4686322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4687322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4688322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4689322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4690322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4691322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4692322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4693322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4694322171b333a1c796fcc1428a96ea1d854a3881faErik } 4695322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4696322171b333a1c796fcc1428a96ea1d854a3881faErik } 4697322171b333a1c796fcc1428a96ea1d854a3881faErik 4698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4699e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4700e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4701e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4702e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4703e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4704e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4705e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4706e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4707e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4708e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4709e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4710e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4711e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4712e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4713e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4714e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4715e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4716e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 47204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 47380b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 47390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 47400b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 47410b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47454032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4746299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47474032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47484032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47494032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47504032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47514032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47524032252c997be9f5d013054dc23ace855007b3a5Adam Powell 475379303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47544032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4755aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 47564032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 47574032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 47584032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47594032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47604032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47614032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 47620046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 47630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4764299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4767499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4768499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4769499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4770499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4771499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4772499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4773499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4774499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4775499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4776499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4777499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4778499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4779499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4780499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4781499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4782499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4783499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4784499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4785499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4786499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4787499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4788499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4789499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4790499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4791499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4792499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4793499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4794499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4795499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4796499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4797499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4798499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4799499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4800499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4801499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4802499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 48049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48070211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 48129d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 48139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 48149d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 48158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 48169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 48179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 48189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 48199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 48209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 48219d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 48229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48239d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 48249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 48259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48266dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48276dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48289d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 48299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4853bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4854bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4855bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4856bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4857bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4858bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4859bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4860bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4861bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4862bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4864bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4865bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4885bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4890bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 48950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 48960a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 48970a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 48980a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49000a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4906029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4907029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4908029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4909029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 49188c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 49198c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49208c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 49218c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4930079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 49358c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 49368c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49378c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 49388c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4948079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4960539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4962539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 49639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 49649d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 49659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 49661fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 49679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4980029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 49812a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 49822a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4983079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4986079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4987079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4988079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 49892a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4990079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4991079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4992029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4993029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 49974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5033ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5034ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5035ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 50644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 50944e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 50958d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 50968d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 50974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 50988d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5099becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5100becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5101becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 51024e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51038d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 51044e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 52004032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 52014032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 52024032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 52093c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 522014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 522114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 522214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 522314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 522414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 522514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 522614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 522714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 522814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 522914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 523014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 523114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 523214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 523314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 523414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 523514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 523614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 523714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 523814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 523914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 524014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 524114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 524214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 524314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 524414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 524514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 524614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 524714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 524814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 524914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 525014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 525114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 525214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 525314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 525614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 525714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 526014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 526114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 526214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 526314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 526414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5268ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5269ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 527114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 527214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 527314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5277539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 527814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 527914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5286e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52880785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5291da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5292da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5293da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5294da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5295da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5296da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 52970785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5298ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 52990785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 53000785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5301ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5302ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 53030785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 53040785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 53050785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53060785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 53070785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 53080785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 53090785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5402e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5403079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 540743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 540843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 540943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 541043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 541143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 541243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 541343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 541443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 541543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 541643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 541743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 541843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 541943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 542043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 542143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 542224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 542343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 542443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5428d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 54404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5441b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5447b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 545124443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5454b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55004e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 55014e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 55024e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 55034e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 55044e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 55054e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 55064e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 55094e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 55104e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5531b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 554783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55488d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55498d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5550b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5551b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5552b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5553b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 555483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 555583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 555683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 555783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 555883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 555983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5565cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5569b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5574105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5596b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5597b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5598b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5599b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5600c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 56011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 56021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 5603f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mPublicInputConnection = new InputConnectionWrapper(outAttrs); 56041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5605f69913056b8c6000ff0306573a97971702e8d35aRomain Guy outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 56061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 56071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5608c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5609c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5610b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5612f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private class InputConnectionWrapper implements InputConnection { 5613f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private final EditorInfo mOutAttrs; 5614f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection mTarget; 5615f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5616f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public InputConnectionWrapper(EditorInfo outAttrs) { 5617f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mOutAttrs = outAttrs; 5618f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5619f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5620f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection getTarget() { 5621f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) { 5622f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5623f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5624f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget; 5625f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5626f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5627f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5628f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean reportFullscreenMode(boolean enabled) { 5629f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since it is 5630f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the "real" one the IME is talking with. 5631f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.reportFullscreenMode(enabled); 5632f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5633f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5634f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5635f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performEditorAction(int editorAction) { 5636f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // The editor is off in its own window; we need to be 5637f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the one that does this. 5638f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (editorAction == EditorInfo.IME_ACTION_DONE) { 5639f69913056b8c6000ff0306573a97971702e8d35aRomain Guy InputMethodManager imm = (InputMethodManager) 5640f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5641f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (imm != null) { 5642f69913056b8c6000ff0306573a97971702e8d35aRomain Guy imm.hideSoftInputFromWindow(getWindowToken(), 0); 5643f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5644f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return true; 5645f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5646f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return false; 5647f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5648f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5649f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5650f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean sendKeyEvent(KeyEvent event) { 5651f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since the filter 5652f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // text view may not be shown in a window so has 5653f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // no ViewAncestor to dispatch events with. 5654f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.sendKeyEvent(event); 5655f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5656f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56570ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5658f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextBeforeCursor(int n, int flags) { 5659f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5660f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextBeforeCursor(n, flags); 5661f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5662f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56630ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5664f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextAfterCursor(int n, int flags) { 5665f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5666f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextAfterCursor(n, flags); 5667f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5668f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56690ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5670f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getSelectedText(int flags) { 5671f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5672f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getSelectedText(flags); 5673f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5674f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56750ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5676f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public int getCursorCapsMode(int reqModes) { 5677f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5678f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getCursorCapsMode(reqModes); 5679f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5680f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56810ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5682f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5683f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().getExtractedText(request, flags); 5684f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5685f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56860ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5687f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5688f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().deleteSurroundingText(beforeLength, afterLength); 5689f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5690f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56910ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5692f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingText(CharSequence text, int newCursorPosition) { 5693f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingText(text, newCursorPosition); 5694f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5695f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56960ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5697f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingRegion(int start, int end) { 5698f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingRegion(start, end); 5699f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5700f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57010ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5702f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean finishComposingText() { 5703f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget == null || mTarget.finishComposingText(); 5704f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5705f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57060ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5707f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitText(CharSequence text, int newCursorPosition) { 5708f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitText(text, newCursorPosition); 5709f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5710f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57110ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5712f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCompletion(CompletionInfo text) { 5713f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCompletion(text); 5714f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5715f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57160ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5717f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCorrection(CorrectionInfo correctionInfo) { 5718f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCorrection(correctionInfo); 5719f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5720f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57210ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5722f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setSelection(int start, int end) { 5723f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setSelection(start, end); 5724f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5725f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57260ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5727f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performContextMenuAction(int id) { 5728f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performContextMenuAction(id); 5729f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5730f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57310ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5732f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean beginBatchEdit() { 5733f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().beginBatchEdit(); 5734f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5735f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57360ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5737f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean endBatchEdit() { 5738f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().endBatchEdit(); 5739f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5740f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57410ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5742f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean clearMetaKeyStates(int states) { 5743f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().clearMetaKeyStates(states); 5744f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5745f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57460ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5747f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performPrivateCommand(String action, Bundle data) { 5748f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performPrivateCommand(action, data); 5749f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5750f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5751f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5752b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5753b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5754b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5755b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5756b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5757b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5758b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5759b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 57600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5761b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 5768f69913056b8c6000ff0306573a97971702e8d35aRomain Guy PopupWindow p = new PopupWindow(getContext()); 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5772f69913056b8c6000ff0306573a97971702e8d35aRomain Guy p.setContentView(getTextFilterInput()); 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5778d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5787f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private EditText getTextFilterInput() { 5788f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTextFilter == null) { 5789f69913056b8c6000ff0306573a97971702e8d35aRomain Guy final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5790f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter = (EditText) layoutInflater.inflate( 5791f69913056b8c6000ff0306573a97971702e8d35aRomain Guy com.android.internal.R.layout.typing_filter, null); 5792f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // For some reason setting this as the "real" input type changes 5793f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the text view in some way that it doesn't work, and I don't 5794f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // want to figure out why this is. 5795f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5796f69913056b8c6000ff0306573a97971702e8d35aRomain Guy | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5797f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5798f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.addTextChangedListener(this); 5799f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5800f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTextFilter; 5801f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5802f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 5808f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getTextFilterInput().setText(""); 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 582724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 583243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 58491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 58501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5854f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (isTextFilterEnabled()) { 5855f69913056b8c6000ff0306573a97971702e8d35aRomain Guy createTextFilter(true); 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 58641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5897aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5898aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5899aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5900aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5901aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5902aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59485be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 59495be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 59505be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 59515be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 59525be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 595752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 595852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 595952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 596052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 596152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 596252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 596352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 596452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59737b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 59829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 59849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 599213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5996c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 6008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 6009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 6010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 6011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 601413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6015499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6016499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6017499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6018499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6019499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 60209b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 60219b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 60223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 60233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 60243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 60253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 60263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 60273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 60283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 60299b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 60302148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60319b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6032499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6033335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 6034335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 6035335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 6036499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6037499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6038499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6039a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 60400ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6041a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 60420ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6043a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 6044a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 6045a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6046a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6047a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 6048a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 6049a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6050a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6051a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6052a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6053a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 60542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 60552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 60562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 60578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60582148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 60592148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 60602148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 60612148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 60622148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6063499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6064499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 60658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 606616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6067499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6068499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 60692148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 60702148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 60712148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60722148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 607316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6074fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6075fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 607616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6077499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 607816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6079499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6080499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6081499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6082499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6083499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 60848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6085499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6086fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6087fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6088fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6089fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6090fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6091499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6092499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6093499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6094b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6095b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6096b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6097b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6098b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6099b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6100b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6101b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6102b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6103b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6118b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6119b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6120b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6121b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6122b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6123b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6124b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6125b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6126b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6127b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6128b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6129b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6130b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6131b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6132b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6133b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6134b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6135b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6163a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6164a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6165a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6166a798170f2abe198f806b12dd904830bc25257525Adam Powell 61678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 62028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6222bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 62239bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 62249bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 62259bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 62279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 62294df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 62304df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 62314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 62324df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 62334df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6234bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 62354df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 62364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 62370bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 62380bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 62390bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 62400bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 62410bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 62420bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 62430bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 62440bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6245bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 62460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 62470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6248079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6249079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6250079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6251079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6252079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6253079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6254079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6255539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6256539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6257539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6258539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6259539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 62749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 63209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 63229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 63259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 63279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 63299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 63319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6332539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6333539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6334539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6335728713258ffef4df053b85e0a3488334cbcba24cChet Haase private LongSparseArray<View> mTransientStateViewsById; 6336539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 63479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 63499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6351f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6352f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6353f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6354f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6355f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6356f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6357f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6358f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6359f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6360f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6361f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6362f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6363f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6364f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6365f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6366f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6367f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6368539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6369539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6370539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6371539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6372539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6373539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6374728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6375728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int count = mTransientStateViewsById.size(); 6376728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < count; i++) { 6377728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.valueAt(i).forceLayout(); 6378728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6379728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6380f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 63810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 63829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 63849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 63889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6406539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6407539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6408539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6409728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6410728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6411728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6427f69913056b8c6000ff0306573a97971702e8d35aRomain Guy //noinspection MismatchedReadAndWriteOfArray 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 64319c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 64329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 64339c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 64349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 64359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 64364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6459539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6460728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6461728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(position); 6462728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViewsById.get(id); 6463728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.remove(id); 6464728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6465539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6466728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews != null) { 6467728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int index = mTransientStateViews.indexOfKey(position); 6468728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (index >= 0) { 6469728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViews.valueAt(index); 6470728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.removeAt(index); 6471728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6472728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6473539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6474728713258ffef4df053b85e0a3488334cbcba24cChet Haase return null; 6475539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6476539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6477539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6478539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6479539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6480539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6481539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6482539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6483539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6484728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6485728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6486728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6487539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6488539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 64919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 64939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6494079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 64959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 64979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6498079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6505539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 65119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6515539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6516539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 65179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 65189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 65199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6520539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6521539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6522b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && scrapHasTransientState) { 6523539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6524539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6525539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6526539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6527539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6528539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6529057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6530728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6531728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6532728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6533728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6534728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(lp.itemId, scrap); 6535a2230e18563833b9a0672067fe26a095c8847dd0Chet Haase } else if (!mDataChanged) { 6536a2230e18563833b9a0672067fe26a095c8847dd0Chet Haase // avoid putting views on transient state list during a data change; 6537a2230e18563833b9a0672067fe26a095c8847dd0Chet Haase // the layout positions may be out of sync with the adapter positions 6538728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6539728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6540728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6541728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(position, scrap); 6542728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 65439b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 65449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 65459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6547539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 65489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 65529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6554c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 65559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 65569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 65579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6561539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6562539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6563539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6564539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6565539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6566539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6567539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6568539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6569539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6570539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6571539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6572539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6573539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6574539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 65769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 65789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 65799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 65809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 65819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 65839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6584a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 65859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 65869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6587079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6588079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6589079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 65909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 65929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6593539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6594539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 65959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6596b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && 6597539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 65989b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 65999b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6600539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6601728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6602728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6603728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6604728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6605728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(mFirstActivePosition + i); 6606728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(id, victim); 6607728713258ffef4df053b85e0a3488334cbcba24cChet Haase } else { 6608728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6609728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6610728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6611728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(mFirstActivePosition + i, victim); 6612539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6613539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 66149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 66159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 66189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 66199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6620a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6621079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 66229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 66239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6624c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 66259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 66269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 66279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 66329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 66369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 66379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 66399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 66409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 66419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 66429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 66439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 66449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 66459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 66469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 66479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 66489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 66499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6651bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6652bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6653bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6654bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6655bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6656bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6657bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6658bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6659bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6660bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6661728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6662728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < mTransientStateViewsById.size(); i++) { 6663728713258ffef4df053b85e0a3488334cbcba24cChet Haase final View v = mTransientStateViewsById.valueAt(i); 6664728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (!v.hasTransientState()) { 6665728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.removeAt(i); 6666728713258ffef4df053b85e0a3488334cbcba24cChet Haase i--; 6667728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6668728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6669728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 66709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 66749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 66769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 66779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 66789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 66799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 66809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 66819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 66829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 66839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 66849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 668752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 668852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 668952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 669052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 669152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 669252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 669352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 669452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 669552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 669652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 669752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 669852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 669952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 670052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 670152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 670252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 670352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 670452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 670552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6706266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 670752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 670852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 670952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 671052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 671152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 671252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 671352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 671452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 671552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 671652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 671752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 671852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 671952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 67209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6721079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6722079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6724079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6725079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6726079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6727079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6728079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6729079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6730079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6731079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6732079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6733079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6734079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6735079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6736079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6737079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6738079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 67399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6740