AbsListView.java revision 5b2081dc41cccd76780a2cb4e9a973505c13446c
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 /** 22639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * The thread that created this view. 22739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 22839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private final Thread mOwnerThread; 22939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 23039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 25714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 25814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 25914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 26114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 262f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 263f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 279499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 280499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 281499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 282499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 284539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 285539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 286539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 287539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2892148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2902148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2912148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2922148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 304079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 305079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 306079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 307079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 308079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3640211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4201fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * Whether or not to always show the fast scroll feature on this list 44739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 44839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette boolean mFastScrollAlwaysVisible; 44939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 45039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4930b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 50514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 50614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 50714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 50814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 50914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5271cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5281cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5291cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 555d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 556d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 557d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 558d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 559d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 586d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 588d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5936dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 595161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5964296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5974296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 59821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 60021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 6014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 60224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 60324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 60424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 6054e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 6084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 6094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6176dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 63489935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 63989935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 661da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 662da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 663da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 664da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 665da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 66607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 66707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 66807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 669c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 670c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 671c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 672c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 673c1d7e770e123adfa992d013fa294693d077cbc78alanv 6744e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6754e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6764e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 677da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 678b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 679b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 680a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 681b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 682b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 683ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 684ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 685ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 686ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 687ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6880b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6890b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6900b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6910b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6920b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 693e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 694e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 695e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 696e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 697e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 698e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 699e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 700e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 750e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 751e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 752e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 753e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 754e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 755e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 756e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 757e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 758e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 759e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 760e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 761e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 762e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 763e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 764e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 76939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 77039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 78639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 82120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 82220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 827d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 828d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 829df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 830d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 831d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 832d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 833d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 834d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8354296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8364296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8374296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8384296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 842d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 843d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 85089935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 85189935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 866539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 867539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 86914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 94082ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 94182ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 94282ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 96414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 1003a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 1004a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1005a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1006a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1007a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1008a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 101714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 104914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1068bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 107229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10765bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10775bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10795bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 108014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 10855bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 10925bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1093bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 10975bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10985bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1099f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 110314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1117bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1118bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1119bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 112829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 112929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 113029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 113229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 113329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 113429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 113529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 113629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 113729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 113829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 113929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 114029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 114129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 114229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 114329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 114429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 114529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 114629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1172f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1175f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12062bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12072bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12094ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12104ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 121486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 121586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 121686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 121786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 121886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 121986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 122086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 122186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 122286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 122386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 122686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 122839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 122939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 123039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 123139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 123239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 123339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 123439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 123539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 123639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 123739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 123839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 123939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 124039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 124139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1242447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 124339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1244447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 124539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 1246447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette if (mFastScroller != null) { 1247447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette mFastScroller.setEnabled(enabled); 124839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 124939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScroller = new FastScroller(this); 1250fb66415655c288be2ac2078cd0a5e20c7040266eAlan Viverette mFastScroller.setEnabled(true); 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 125226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 125326bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette recomputePadding(); 125426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 125526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null) { 125626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette mFastScroller.updateLayout(); 125726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 126186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 126286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 126486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 126586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 126686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 126786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 126820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 126986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 127086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 127120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 127220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 127320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 127439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 127539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 127639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 127739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 127839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 127939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 128039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 128139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 128239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 128339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 128439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 128539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 128639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 128739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 128839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 128939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 129039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 129139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 129220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 129339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 129420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 129539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 129620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 129720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 129820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 129939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 130020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 130139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 130239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 130339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 130439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 130539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 130620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 130720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 130820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 130986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 131020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 131186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 131220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 131320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 131420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 131539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 131620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 131720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 131820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 131920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 132026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null && mFastScroller.isEnabled()) { 132120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 132220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 132420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 132786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 132886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13360a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 133720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 133820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 133920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 134020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 134120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 134220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 134626bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 134726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 134826bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null) { 134926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette mFastScroller.setScrollBarStyle(style); 135026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 135126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 135226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13540ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 13590ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return mFastScrollEnabled; 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 13730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 14110ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette mFastScroller.onScroll(mFirstPosition, getChildCount(), mItemCount); 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14160a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14204e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14214e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14224e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14234e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14244e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1425d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1426d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1427d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1428d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14299c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14304e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1431d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1432d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14334e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14344e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14354e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14364e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14374e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14388a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14398a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14408a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14418a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14428a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14438a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14448a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14458a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14468a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14478a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1448fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1449fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1450fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 145180943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1452fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1453fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1454fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 145580943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1456fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1457a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1458a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1459a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1460a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1461a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 146248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 146348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 146448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1465a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1466a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1467fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1468a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1469a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1470a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1471a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1472a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1473a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1474fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1475a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1476a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1477a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1478a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1479a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1480a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 148148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14828a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14838a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14845b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 14855b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 14865b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 14875b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 14885b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 14895b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14905b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 14915b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 14925b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 14935b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 14945b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 14955b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 14965b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14975b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 14985b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14995b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 15646bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1620a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16212614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1622f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 162314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1643a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16442614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1645f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 164643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 164743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 164814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 164943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 165043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 165143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 165243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 165314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1654f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1666a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 16672614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1668f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 166943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 167043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 167143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 167243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 167343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 167414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1686f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 16928fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1708f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1718e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1719e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1720e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1721e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1722e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1723e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1724e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1725e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1726e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1727e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1728e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1729e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1730e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1731e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1732e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 173399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17447becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17457becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17467becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17477becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17487becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17497becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 17507becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 17517becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 17527becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 17537becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 175699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 175799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 175899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 175999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 176099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 176199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1780a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1781a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17829a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17839a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17849a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17859a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 178614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17879a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17889a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17899a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17909a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17919a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 17929a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17932614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1795335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1796335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1797335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1798335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1813e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1822079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1824e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18412614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18422614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1843a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1844a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1845a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1846a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1847a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1852d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1853d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 18590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1899b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1900b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1901b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1902b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1903b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1904b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1905b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1924161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1926e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1932079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19770b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2056da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2057da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2058da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2059da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2060ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2061da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2062da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2063ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2064da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2065da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2068d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2069d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2070d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2071d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2076f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2077f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2078f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2079f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2080f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2081f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2082f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20830ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 20842c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 20852c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 20862c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2087f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2101d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2102d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2103d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2104d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2105d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2106d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2107d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2108d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2114d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2115d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2116d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 221921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 222021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 222421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 22255fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 22265fade8c69aef621312232ef0647502d7a63990b9Romain Guy 222721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2230539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2231539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2232539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2233539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2234539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22414213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22424213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22434213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22444213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2246079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 225021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2251a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2252a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 22564213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22574213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22584213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22594213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22604213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2266aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2267aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2268aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2269aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2270aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2271aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2272aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2273aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2274aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2275aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2276aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2277aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2278aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2279aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2280c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2281c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2282c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2283c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2284b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2285b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2286b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2287c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2288c1d7e770e123adfa992d013fa294693d077cbc78alanv 22895fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 22905fade8c69aef621312232ef0647502d7a63990b9Romain Guy 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2294c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2295c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 229650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 229750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 229850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 229950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 230050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 230150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 230250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 230350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 230450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 230550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 230650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 230750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2308c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2309c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2310c1d7e770e123adfa992d013fa294693d077cbc78alanv 2311c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23125b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2313c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2314c1d7e770e123adfa992d013fa294693d077cbc78alanv 2315c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2316c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2317fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2318fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2319fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2320fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2321c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23229c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2323c1d7e770e123adfa992d013fa294693d077cbc78alanv 23249c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23259c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2326c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2327c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2328c1d7e770e123adfa992d013fa294693d077cbc78alanv 23299c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23309c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2331fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2332fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2333fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2334c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2335c1d7e770e123adfa992d013fa294693d077cbc78alanv 2336c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 23379c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 23389c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 23399c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 23409c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23419c3e0e68260fe50456996d75304b73054cbde94aalanv } 23429c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2343fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23449c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23459c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23469c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23479c3e0e68260fe50456996d75304b73054cbde94aalanv } 23489c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2349fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2350fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2351c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2352c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2353fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2354fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2355fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2356c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2357c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2358fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2359c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2360c1d7e770e123adfa992d013fa294693d077cbc78alanv 2361fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2362c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2363c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2364c1d7e770e123adfa992d013fa294693d077cbc78alanv 23655b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 23665b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 23675b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 23685b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 23695b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 23705b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 23715b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 23725b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 23735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 23745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 23755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 23765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 23775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 23785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 23795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 23805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 23815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 23825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 23835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 23845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 23855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 23865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 23875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 23885b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 23895b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 23905b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 23915b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 23925b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 23935b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 23945b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 23955b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 23965b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 23975b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 23985b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 23995b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24005b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24015b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24025b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24035b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2404079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2405079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2406079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2407079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2408079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2411e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2412e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2413e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2420a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2421079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2422079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 246320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 246420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 246520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 246620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 246720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 246820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 246920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 247020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 247120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 247220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 247320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 247420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 247520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 247620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 247720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 247820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 247920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 248020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 248120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 248220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 248320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 248420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 248520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 248620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 248720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2493d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 252274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2526079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2570079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2588df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2589df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2590df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2591df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2595079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2600ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2601ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2602ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2609df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2610df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2630079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2631079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2632079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2633079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2634079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2635079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2636079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2637079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2638079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2639079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2643079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2686e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2687e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2688e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2689e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2690e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2691e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26960e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26970e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26980e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 270182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 270282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 270382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 27046a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 27056a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 27066a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 27076a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 27086a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 270982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2710b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27171f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 27181f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 27191f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 272021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 272121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 272221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27240e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 27250e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 27269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 27270e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 272982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2730bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 273182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 273282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 273382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 27361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 27371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 27411cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 27421cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 27431cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2744d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2745d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2746d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2747d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2748d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2749d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 27504032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2751d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2752d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2753d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2754d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2755d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2756d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2757d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2758d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2759d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2760d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2761d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2762d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2763a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2764d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2765b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2776670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2777670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2778670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2779670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2780670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 27814032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27824032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27834032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27860fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2790670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 279997566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28233a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 28243a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 28253a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 28263a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio if (mFastScroller != null) { 28273a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio mFastScroller.setScrollbarPosition(getVerticalScrollbarPosition()); 28283a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 28293a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 28303a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 28530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 285929219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2872005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2873005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2874005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2875005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2876005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 28777890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 28787890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 28797890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 28807890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 28817890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 28827890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 28888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 29128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29358350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 29391e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 29401e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 29421e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2967fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2968fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2969fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2970fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2971fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2972fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2973fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2974fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2975fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2976fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2977fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2978fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2979fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2980fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2981fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3006df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3007df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3008df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3009df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3010df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 301224d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3013dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3014dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3015dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3016df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3017dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3019dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 302145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 302245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 302345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 302445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3095079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3096079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3097e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 314774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 315413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 315513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 315613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 315713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 320778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 321278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 321378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 322078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 322678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3247a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 325078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 325178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 325278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3253a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 325478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 325878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 326078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 326178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 326278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 326378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 326478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 326578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 326778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 326878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 326978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 327578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 327678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 328978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 329078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3291a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3297a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 330278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 330378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 33049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 33059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 33069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 330778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 33109d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 331178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 331278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 331378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 331478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 331578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 331678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 331778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 331878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 331978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 332078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 332178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 332278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 332478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 332578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33421e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3346637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3347637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33494032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33504032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33514032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3354637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 33550fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3356637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3357637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3365dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3366dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3367dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3368dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3369dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3370dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 33711fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 33721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 33731fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 33741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 337528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 337628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 337728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 337828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 337928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 338028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 338128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 338228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 338982f3495b146b267f3786997752cef25310176349Romain Guy 339013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 33948fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 33958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 33968fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 33978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33988fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 34018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 34028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34038fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34049d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 34058fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 34068fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 34078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34088fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3409e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 34118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 34128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3414e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34158fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 34168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 34178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 34188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 34198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 34208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 34218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 34228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 34238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 34248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 34258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 34278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3429fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 34308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 34318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 34328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 34338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 34348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 34358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 34368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 34378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 34388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 34398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 34408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 34418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 34428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 34438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 34448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 34458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 34468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 34488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3449fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3450e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3452e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3453e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3454e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3455e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 34563d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 34573d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 34583d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 34593d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3460e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3461e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3462e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3463e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3464e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3465e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 34663d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 34673d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3468e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3469e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 34703d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3471e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3472e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3473e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 34743d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3475e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 34763d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 34773d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 34783d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 34793d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 34803d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 34813d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 34823d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 34833d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 34843d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 34853d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 34863d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3487e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 34883d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3489e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3490e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3491e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3492e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34933d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3494e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3495e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34962585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34976f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3498e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3499e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 35003d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3501e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 35026f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 35033d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3504e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3505e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3506e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3507e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3508e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35096f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3510b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3511b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 35123d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3513e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3514e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3515e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3516e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3517e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3518e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3519e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3520e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3521e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3522e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3523e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3524e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3525e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3526e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3527e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3528e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 35308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3531e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 35328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 35338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 35348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 35358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 353674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 353774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 353874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 353974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 354074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 354174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 35423d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 35433d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 354474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 354574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 354674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 354774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 354874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 354974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 355074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 355174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 355274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 355374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 35548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 35568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 35578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 35588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3560e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3562e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3563e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3564e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3565e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3566e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3567e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3568e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 356974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3570e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3571e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3572e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3573e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 357474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 357574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 357674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 357774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 357874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 357974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3580e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 358174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 358274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 358374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 358574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 358774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 358874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3589e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 359074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 359174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 359274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 359374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 359474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 359574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 359674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 359774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 359874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 359974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 360074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 360174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 360474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 360574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 360674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 360774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 360874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 360974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 361074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 361174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 361274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 361374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 361474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged) { 361574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 361674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 361774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 361874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 361974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 362074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 362174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 362274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 362374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 362474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 362574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 362674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 362774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3630e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3631e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3632e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3633e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3634e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3635e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3636e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3637e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3638e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3639e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3640e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3641e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3642e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3643e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3644e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3645e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3646e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3647e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3648e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3649e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3650e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3651e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3652e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3653e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3654e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3655e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3656e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3657e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3658e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3660e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3661e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3662e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3663e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3664e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3665e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3666e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3667e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 36686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 36696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3670e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3671e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3672e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3673e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3674e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 36756198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3678e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3679e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3680e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3682e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3684e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3685e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3686e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3688e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3689e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3690e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3692e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3693e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3694e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3695e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3696e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3700e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3702e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3704e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3705e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3706e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3710e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 371174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3712e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3714e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3716e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3717e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3718e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3719e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3721e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3723e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3724e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3725e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 37264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3727e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3729e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3730e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3731e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3732e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3733e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 37344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3735e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 37364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 37379bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3738e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3739e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 37409bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3741e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3742e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3743e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3744e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 374574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3746e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3747e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3748e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3749e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 375074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3751e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3754e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3755e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3756e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3757e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3758e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37620a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 37630a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 37640a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 37650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 37660a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 37670a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 37680a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 377333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 377433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 377533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 377633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 377733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 377833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 377933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 378033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3781275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 378233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 378333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 378433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 378533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 378633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 378733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 378833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 378933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 379033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 379133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 379233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 379907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 380007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 380107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 38049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3805a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 38079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3808a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 381407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 381507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 381607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 38209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 38219d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3822e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3823a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 38259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3826a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3827a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 383407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 383507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 383607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 383707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 383807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 383907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 384007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 384107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 384213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 384313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 384413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 384513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 384613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 384713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 384813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 384913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 385013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 385113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 385213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 385313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 385413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 385513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 385613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 385713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 385813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 385913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 386013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 386113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 386213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 386313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 386413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 386513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 386613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 386713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 386813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 386913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 387013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3872a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 3873a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptHoverEvent(event)) { 3874a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 3875a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3876a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3877a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 3878a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3879a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3880a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 38840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 38861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 38871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 38881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 388928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 389028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 389128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 389228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 389328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 389428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 389528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 389628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 38970ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptTouchEvent(ev)) { 38980ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 390379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 39104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 39114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 39124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 391479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 392613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 392713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 392879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 39294b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 39304b4f40f84e72579417604143e5f42115769649b8Romain Guy } 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 39372585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 39382585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 39392585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 39402585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 39412585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 39424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 394313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 394413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 394578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 395313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 39564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 395713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 39634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 39644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 39724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 39734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 39744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 39754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 39764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 39774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 39784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 39794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 39804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 39814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 39834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 39844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 40200046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4042d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 40438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4044d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4045d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4046d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4048d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4049d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4050d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4051d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4052d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4053d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4054d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4055b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4056b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4057d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4058d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4059d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4060d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4061d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4062b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4063d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4064d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4065d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4066d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4067d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4068d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 406979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 407379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 40760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 40801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 40891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 40901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 40911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4101e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 41060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4107044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4108044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41264032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 41274032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 41284032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 41294032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 41304032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41331fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 41360b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 41390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 41421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4145d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 414879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4149d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 415021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 415121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 415221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4153d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 41545e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 41555e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 41565e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 41575e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 41585e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4159d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4160d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4161d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4162d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 416779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 416879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4169d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4172d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4173d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4174d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4175d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4176d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 41787f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 41797f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 41807f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 41817f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 418279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 418379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 418479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 418579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 42089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4211d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4215d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 42249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 42259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42333cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 42343cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 42353cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 42409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 42421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4251d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4265044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4266044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4269044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4270044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4271044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4272044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4273044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4274044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4275044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4276044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4277044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4278044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4279044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4280044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4281637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42831fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4295e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4301e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 43024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 430852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4309e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4310e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 43114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4316e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 43174032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43184032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4319aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4320aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4321161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4322aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4323aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4324aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4325161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4326aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4327aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4328aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4329e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4330e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4331e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4332e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4333e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4334e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4336e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43384bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43390061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43400061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 43410061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 43430061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 43440061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43470061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43560061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43601fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4363e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 43644032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43654032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4371aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4372aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4373161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4374aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4375aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4376aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4377161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4378aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4379aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4380aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4381e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4382e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4383e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4384e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4385e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4386e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4388e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43904bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43910061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43920061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43990061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44080061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44150061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44250061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44340061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 44374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44381fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4440e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4441e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4442322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4443322171b333a1c796fcc1428a96ea1d854a3881faErik } 4444322171b333a1c796fcc1428a96ea1d854a3881faErik 4445aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 44464032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 44474032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4448aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4449aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4450aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4451161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4452aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4453aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4454aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4455161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4456aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4457aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4458aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4459aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4460aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4461aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4462aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4463aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4464aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 44651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 44661fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 44670061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4468e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4469e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4470e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4471e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4472e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4473e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4474371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4475e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44764bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 44770061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 44780061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 44790061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 44800061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4481e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4482e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 44830061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 44840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4485e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4486e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4487e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4488371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 44894ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 44900b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 44910b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4492371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4493234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4495e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4496e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4497e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4498e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4499e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4500e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4501e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4502e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4503e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4504e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4505e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4506e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4507e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4508e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4509e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4510e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4511e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4512e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4513e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4514e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4515e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4516e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4517e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4518e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4519e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4520e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4521e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4522e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4523e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4524e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4525e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4526e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4527e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4528e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4529e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4530e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4531e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4532e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4533e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4534e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4535e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4536e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4537e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4538e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4539e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4540e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4541e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4542e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4543e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4544e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4545e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4546e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4547e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4548e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4549e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4550e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4554e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 45558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 45594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 45644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 45660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45670b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45711fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 45801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45821fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 45830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45867e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 45871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4594029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4596029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4597029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46041fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 46111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 46127e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 46140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 46210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46301fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 46350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 46360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 46370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 46391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 46401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46420b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46467e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 46471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46691fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46717e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 46720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 46731fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 46780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4684e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4685234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4686234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 46870b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4688234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4689234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4690e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4691371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4692234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4693234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4694e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4695371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4696e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46974032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4698e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46994032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 47004032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 47014032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 47024032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47034032252c997be9f5d013054dc23ace855007b3a5Adam Powell 47044032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 47054032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 47064032252c997be9f5d013054dc23ace855007b3a5Adam Powell 47074032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 47084032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 47090b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 47100b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 47110b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 47121fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4713e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 47140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 47150b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 47160b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 47171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4718e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4719e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4720e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4721234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 47220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 47230b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 47240b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4725e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4726e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4727e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4728e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 47364bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 47374bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 47384bede9e425875542976a422222510fa4056a8339Romain Guy */ 47394bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 47404bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 47414bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 47424bede9e425875542976a422222510fa4056a8339Romain Guy } 47434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 47444bede9e425875542976a422222510fa4056a8339Romain Guy } 474521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 474621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 474721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 474821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 47494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 475021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 475121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 475221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 475321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 475421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 47554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 47564bede9e425875542976a422222510fa4056a8339Romain Guy /** 4757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4767322171b333a1c796fcc1428a96ea1d854a3881faErik 4768322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4769322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4770322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4771322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4772322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4773322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4774322171b333a1c796fcc1428a96ea1d854a3881faErik * 4775322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4776322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4777322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4778322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4779322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4780322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4781322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4782322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4783322171b333a1c796fcc1428a96ea1d854a3881faErik } 4784322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4785322171b333a1c796fcc1428a96ea1d854a3881faErik } 4786322171b333a1c796fcc1428a96ea1d854a3881faErik 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4788e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4789e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4790e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4791e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4792e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4793e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4794e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4795e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4796e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4797e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4798e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4799e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4800e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4801e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4802e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4803e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4804e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4805e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 48094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 48270b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 48280b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 48290b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 48300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48344032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4835299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 48364032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 48374032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 48384032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 48394032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 48404032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 48414032252c997be9f5d013054dc23ace855007b3a5Adam Powell 484279303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 48434032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4844aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 48454032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 48464032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 48474032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 48484032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 48494032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 48504032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 48510046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 48520b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4853299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4856499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4857499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4858499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4859499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4860499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4861499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4862499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4863499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4864499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4865499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4866499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4867499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4868499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4869499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4870499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4871499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4872499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4873499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4874499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4875499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4876499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4877499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4878499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4879499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4880499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4881499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4882499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4883499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4884499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4885499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4886499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4887499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4888499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4889499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4890499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4891499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 48939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48960211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 49019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 49029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 49039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 49048fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 49059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 49069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 49079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 49089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 49099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 49109d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 49119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49129d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 49139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 49149d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49156dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 49166dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 49179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 49189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49242f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 49252f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 49262f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * @param y the amount of pixels to scroll by vertically 49272f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * @return true if the list is able to scroll, or false if the list is 49282f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * already at the beginning/end and unable to scroll any more. 49292f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 49302f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette public boolean scrollListBy(int y) { 49312f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette return !trackMotionScroll(-y, -y); 49322f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette } 49332f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette 49342f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette /** 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4953bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4954bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4955bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4956bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4957bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4958bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4959bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4960bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4961bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4962bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4964bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4965bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4985bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4990bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 49950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 49960a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 49970a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 49980a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50000a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 5001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 5002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5006029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 5007029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 5008029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 5009029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 5012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 5015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 50188c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 50198c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 50208c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 50218c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 5023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 5025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 5030079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 50358c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 50368c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 50378c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 50388c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 5040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 5042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 5045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 5048079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 5060539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 5061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5062539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 50639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 50649d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 50659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 50661fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 50679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 50689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 5072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 5073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5080029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 50812a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 50822a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5083079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5084079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5085079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5086079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5087079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5088079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 50892a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5090079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5091079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5092029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5093029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 50974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5133ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5134ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5135ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 51644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5183637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51938fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 51944e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 51958d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 51968d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 51974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 51988d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5199becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5200becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5201becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 52024e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 52038d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 52044e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 53004032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 53014032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 53024032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 53093c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 532014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 532114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 532214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 532314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 532414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 532514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 532614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 532714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 532814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 532914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 533014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 533114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 533214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 533314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 533414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 533514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 533614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 533714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 533814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 533914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 534014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 534114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 534214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 534314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 534414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 534514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 534614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 534714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 534814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 534914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 535014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 535114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 535214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 535314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 535414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 535514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 535614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 535714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 535814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 535914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 536014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 536114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 536214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 536314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 536414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5368ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5369ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 537114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 537214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 537314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5375539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5376539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5377539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 537814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 537914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5386e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53880785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5391da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5392da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5393da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5394da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5395da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5396da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 53970785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5398ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 53990785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 54000785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5401ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5402ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 54030785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 54040785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 54050785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 54060785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 54070785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 54080785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 54090785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5502e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5503079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 550743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 550843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 550943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 551043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 551143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 551243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 551343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 551443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 551543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 551643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 551743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 551843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 551943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 552043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 552143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 552224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 552343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 552443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5528d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 55404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5541b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5547b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 555124443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5554b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56004e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 56014e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 56024e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 56034e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 56044e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 56054e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 56064e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 56094e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 56104e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5631b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 564783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 56488d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 56498d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5650b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5651b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5652b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5653b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 565483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 565583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 565683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 565783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 565883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 565983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5665cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5674105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5696b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5697b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5698b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5699b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5700c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 57011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 57021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 5703f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mPublicInputConnection = new InputConnectionWrapper(outAttrs); 57041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5705f69913056b8c6000ff0306573a97971702e8d35aRomain Guy outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 57061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 57071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5708c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5709c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5710b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 57110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5712f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private class InputConnectionWrapper implements InputConnection { 5713f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private final EditorInfo mOutAttrs; 5714f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection mTarget; 5715f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5716f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public InputConnectionWrapper(EditorInfo outAttrs) { 5717f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mOutAttrs = outAttrs; 5718f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5719f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5720f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection getTarget() { 5721f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) { 5722f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5723f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5724f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget; 5725f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5726f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5727f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5728f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean reportFullscreenMode(boolean enabled) { 5729f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since it is 5730f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the "real" one the IME is talking with. 5731f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.reportFullscreenMode(enabled); 5732f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5733f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5734f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5735f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performEditorAction(int editorAction) { 5736f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // The editor is off in its own window; we need to be 5737f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the one that does this. 5738f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (editorAction == EditorInfo.IME_ACTION_DONE) { 5739f69913056b8c6000ff0306573a97971702e8d35aRomain Guy InputMethodManager imm = (InputMethodManager) 5740f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5741f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (imm != null) { 5742f69913056b8c6000ff0306573a97971702e8d35aRomain Guy imm.hideSoftInputFromWindow(getWindowToken(), 0); 5743f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5744f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return true; 5745f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5746f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return false; 5747f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5748f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5749f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5750f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean sendKeyEvent(KeyEvent event) { 5751f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since the filter 5752f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // text view may not be shown in a window so has 5753f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // no ViewAncestor to dispatch events with. 5754f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.sendKeyEvent(event); 5755f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5756f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57570ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5758f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextBeforeCursor(int n, int flags) { 5759f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5760f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextBeforeCursor(n, flags); 5761f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5762f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57630ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5764f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextAfterCursor(int n, int flags) { 5765f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5766f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextAfterCursor(n, flags); 5767f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5768f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57690ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5770f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getSelectedText(int flags) { 5771f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5772f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getSelectedText(flags); 5773f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5774f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57750ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5776f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public int getCursorCapsMode(int reqModes) { 5777f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5778f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getCursorCapsMode(reqModes); 5779f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5780f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57810ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5782f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5783f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().getExtractedText(request, flags); 5784f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5785f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57860ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5787f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5788f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().deleteSurroundingText(beforeLength, afterLength); 5789f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5790f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57910ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5792f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingText(CharSequence text, int newCursorPosition) { 5793f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingText(text, newCursorPosition); 5794f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5795f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57960ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5797f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingRegion(int start, int end) { 5798f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingRegion(start, end); 5799f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5800f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58010ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5802f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean finishComposingText() { 5803f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget == null || mTarget.finishComposingText(); 5804f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5805f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58060ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5807f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitText(CharSequence text, int newCursorPosition) { 5808f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitText(text, newCursorPosition); 5809f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5810f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58110ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5812f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCompletion(CompletionInfo text) { 5813f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCompletion(text); 5814f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5815f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58160ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5817f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCorrection(CorrectionInfo correctionInfo) { 5818f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCorrection(correctionInfo); 5819f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5820f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58210ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5822f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setSelection(int start, int end) { 5823f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setSelection(start, end); 5824f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5825f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58260ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5827f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performContextMenuAction(int id) { 5828f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performContextMenuAction(id); 5829f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5830f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58310ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5832f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean beginBatchEdit() { 5833f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().beginBatchEdit(); 5834f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5835f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58360ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5837f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean endBatchEdit() { 5838f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().endBatchEdit(); 5839f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5840f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58410ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5842f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean clearMetaKeyStates(int states) { 5843f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().clearMetaKeyStates(states); 5844f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5845f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58460ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5847f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performPrivateCommand(String action, Bundle data) { 5848f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performPrivateCommand(action, data); 5849f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5850f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5851f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5852b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5853b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5854b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5855b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5856b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5857b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5858b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5859b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 58600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5861b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 5868f69913056b8c6000ff0306573a97971702e8d35aRomain Guy PopupWindow p = new PopupWindow(getContext()); 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5872f69913056b8c6000ff0306573a97971702e8d35aRomain Guy p.setContentView(getTextFilterInput()); 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5878d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5887f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private EditText getTextFilterInput() { 5888f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTextFilter == null) { 5889f69913056b8c6000ff0306573a97971702e8d35aRomain Guy final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5890f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter = (EditText) layoutInflater.inflate( 5891f69913056b8c6000ff0306573a97971702e8d35aRomain Guy com.android.internal.R.layout.typing_filter, null); 5892f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // For some reason setting this as the "real" input type changes 5893f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the text view in some way that it doesn't work, and I don't 5894f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // want to figure out why this is. 5895f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5896f69913056b8c6000ff0306573a97971702e8d35aRomain Guy | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5897f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5898f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.addTextChangedListener(this); 5899f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5900f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTextFilter; 5901f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5902f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 5908f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getTextFilterInput().setText(""); 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 592724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 593243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 59411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 59491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 59501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5954f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (isTextFilterEnabled()) { 5955f69913056b8c6000ff0306573a97971702e8d35aRomain Guy createTextFilter(true); 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 59641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 59689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 59821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5997aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5998aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5999aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 6000aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 6001aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 6002aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 60199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 60299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 60339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 60429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 60439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 60449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 60485be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 60495be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 60505be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 60515be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 60525be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 60559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 605752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 605852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 605952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 606052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 606152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 606252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 606352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 606452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60737b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 60849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 609213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 6096c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 6108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 6109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 6110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 6111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 611413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6115499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6116499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6117499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6118499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6119499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 61209b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 61219b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 61223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 61233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 61243ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 61253ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 61263ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 61273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 61283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 61299b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 61302148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 61319b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6132499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6133335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 6134335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 6135335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 6136499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6137499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6138499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6139a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 61400ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6141a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 61420ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6143a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 6144a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 6145a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6146a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6147a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 6148a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 6149a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6150a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6151a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6152a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6153a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 61542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 61552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 61562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 61578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 61582148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 61592148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 61602148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 61612148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 61622148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6163499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6164499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 61658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 616616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6167499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6168499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 61692148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 61702148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 61712148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 61722148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 617316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6174fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6175fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 617616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6177499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 617816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6179499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6180499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6181499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6182499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6183499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 61848fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6185499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6186fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6187fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6188fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6189fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6190fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6191499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6192499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6193499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6194b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6195b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6196b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6197b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6198b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6199b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6200b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6201b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6202b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6203b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6218b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6219b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6220b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6221b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6222b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6223b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6224b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6225b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6226b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6227b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6228b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6229b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6230b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6231b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6232b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6233b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6234b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6235b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6261f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6262f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6263a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6264a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6265a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6266a798170f2abe198f806b12dd904830bc25257525Adam Powell 62678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6268f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6269f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6270f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6271f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6272f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6273f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6274f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6275f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6276f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 62778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6278f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6279f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6280f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6281f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 62828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6283f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6284f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6285f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6286f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 62878fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6288f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6289f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6290f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6291f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6292f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6293f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6294f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6295f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6296f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6297f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6298f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6299f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6300f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6301f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6303f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6304f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6305f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6306f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6307f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6308f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6309f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6310f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6311f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6312f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6313f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6314f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 63209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6322bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 63239bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 63249bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 63259bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 63279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 63294df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 63304df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 63314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 63324df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 63334df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6334bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 63354df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 63364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 63370bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 63380bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 63390bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 63400bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 63410bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 63420bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 63430bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 63440bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6345bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 63460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 63470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6348079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6349079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6350079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6351079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6352079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6353079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6354079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6355539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6356539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6357539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6358539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6359539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 63619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 63629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 63659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 63669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 63759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 63809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 63819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 63829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 63849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 64069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 64089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 64099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 64179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 64319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6432539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6433539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6434539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6435728713258ffef4df053b85e0a3488334cbcba24cChet Haase private LongSparseArray<View> mTransientStateViewsById; 6436539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6451f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6452f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6453f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6454f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6455f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6456f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6457f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6458f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6459f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6460f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6461f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6462f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6463f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6464f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6465f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6466f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6467f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6468539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6469539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6470539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6471539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6472539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6473539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6474728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6475728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int count = mTransientStateViewsById.size(); 6476728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < count; i++) { 6477728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.valueAt(i).forceLayout(); 6478728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6479728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6480f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 64810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 64829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 64839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 64889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 64909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 64929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 64939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 64949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 64959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 64989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6506539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6507539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6508539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6509728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6510728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6511728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 65169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 65189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 65199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 65209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 65229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 65239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 65249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 65269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6527f69913056b8c6000ff0306573a97971702e8d35aRomain Guy //noinspection MismatchedReadAndWriteOfArray 65289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 65299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 65309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 65319c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 65329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 65339c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 65349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 65359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 65364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 65379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 65439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 65449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 65469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 65479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 65499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 65519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 65529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 65539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 65549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 65559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 65579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6559539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6560728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6561728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(position); 6562728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViewsById.get(id); 6563728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.remove(id); 6564728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6565539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6566728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews != null) { 6567728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int index = mTransientStateViews.indexOfKey(position); 6568728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (index >= 0) { 6569728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViews.valueAt(index); 6570728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.removeAt(index); 6571728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6572728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6573539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6574728713258ffef4df053b85e0a3488334cbcba24cChet Haase return null; 6575539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6576539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6577539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6578539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6579539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6580539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6581539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6582539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6583539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6584728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6585728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6586728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6587539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6588539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 65899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 65919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 65939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6594079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 65959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 65979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6598079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 65999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 66029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6605d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * Puts a view into the list of scrap views. 6606d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * <p> 6607d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6608d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * with transient state will be preserved for later retrieval. 66099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 66109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 6611d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * @param position The view's position within its parent 66129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6613079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 6614d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 66159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 66169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 66179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6620539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6621d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Don't scrap header or footer views, or views that should 6622d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // otherwise not be recycled. 6623d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final int viewType = lp.viewType; 6624d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (!shouldRecycleViewType(viewType)) { 6625d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette return; 6626d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6627d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6628d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.dispatchStartTemporaryDetach(); 6629d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6630d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Don't scrap views that have transient state. 6631539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6632d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (scrapHasTransientState) { 6633d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6634d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the adapter has stable IDs, we can reuse the view for 6635d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // the same data. 6636d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViewsById == null) { 6637d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6638d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6639d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6640d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else if (!mDataChanged) { 6641d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the data hasn't changed, we can reuse the views at 6642d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // their old positions. 6643d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViews == null) { 6644d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews = new SparseArray<View>(); 6645d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6646d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews.put(position, scrap); 6647d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6648d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Otherwise, we'll have to remove the view and start over. 6649539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6650539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6651539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6652539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6653539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6654d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6655d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mViewTypeCount == 1) { 6656d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mCurrentScrap.add(scrap); 6657d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6658d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mScrapViews[viewType].add(scrap); 66599b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 66609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6661d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.setAccessibilityDelegate(null); 66629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6663d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mRecyclerListener != null) { 6664d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6665d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 66669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6670539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6671539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6672539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6673539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6674539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6675539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6676539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6677539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6678539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6679539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6680539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6681539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6682539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6683539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 66849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 66859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 66879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 66889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 66899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 66909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 66929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6693a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 66949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 66959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6696079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6697079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6698079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 66999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 67019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6702539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6703539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 67049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6705b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && 6706539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 67079b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 67089b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6709539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6710728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6711728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6712728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6713728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6714728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(mFirstActivePosition + i); 6715728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(id, victim); 6716728713258ffef4df053b85e0a3488334cbcba24cChet Haase } else { 6717728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6718728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6719728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6720728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(mFirstActivePosition + i, victim); 6721539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6722539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 67239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 67249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 67279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 67289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6729a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6730079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 67319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 67329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6733c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 67349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 67359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 67369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 67419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 67449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 67459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 67469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 67479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 67489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 67499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 67509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 67519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 67529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 67539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 67549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 67559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 67569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 67579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 67589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6760bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6761bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6762bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6763bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6764bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6765bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6766bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6767bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6768bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6769bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6770728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6771728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < mTransientStateViewsById.size(); i++) { 6772728713258ffef4df053b85e0a3488334cbcba24cChet Haase final View v = mTransientStateViewsById.valueAt(i); 6773728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (!v.hasTransientState()) { 6774728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.removeAt(i); 6775728713258ffef4df053b85e0a3488334cbcba24cChet Haase i--; 6776728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6777728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6778728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 67799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 67829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 67839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 67849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 67859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 67869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 67879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 67889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 67899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 67909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 67919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 67929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 67939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 679652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 679752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 679852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 679952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 680052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 680152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 680252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 680352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 680452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 680552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 680652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 680752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 680852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 680952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 681052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 681152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 681252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 681352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 681452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6815266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 681652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 681752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 681852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 681952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 682052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 682152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 682252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 682352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 682452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 682552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 682652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 682752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 682852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 68299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6830079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6831079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6832079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6833079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6834079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6835079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6836079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6837079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6838079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6839079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6840079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6841079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6842079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6843079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6844079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6845079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6846079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6847079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 68489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6849