AbsListView.java revision d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24
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 /** 678ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 679ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 680ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 681ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 682ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6850b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6870b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 688e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 689e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 690e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 691e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 692e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 693e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 694e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 695e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 744e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 745e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 746e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 747e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 748e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 749e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 750e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 751e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 752e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 753e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 754e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 755e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 756e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 757e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 758e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 759e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 76439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 76539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 78039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mOwnerThread = Thread.currentThread(); 78139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 8080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 81620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 81720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 822d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 823d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 824df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 825d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 826d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 827d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 828d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 829d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8304296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8314296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8324296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8334296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 837d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 838d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 84589935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 84689935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 861539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 862539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 86414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 93582ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * get(int position) where position is a checked position in the 93682ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * list and false otherwise, or <code>null</code> if the choice 93782ff241fd6a82843a8d9d87a1a01c7315079e3d4Cyril Mottier * mode is set to {@link #CHOICE_MODE_NONE}. 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 95914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 998a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 999a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 1000a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 1001a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 1002a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 1003a798170f2abe198f806b12dd904830bc25257525Adam Powell } 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 101214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 104414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1063bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 106729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10715bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10725bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10745bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 107514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 10805bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 10875bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1088bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 109029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 10925bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10935bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1094f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 109814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1112bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1113bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1114bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 112029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 112129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 112229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 112329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 112429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 112829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 112929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 113029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 113229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 113329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 113429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 113529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 113629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 113729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 113829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 113929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 114029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 114129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1167f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1170f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 12012bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 12022bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 12044ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 12054ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 120986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Specifies whether fast scrolling is enabled or disabled. 121086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 121186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * When fast scrolling is enabled, the user can quickly scroll through lists 121286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * by dragging the fast scroll thumb. 121386f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 121486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * If the adapter backing this list implements {@link SectionIndexer}, the 121586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * fast scroller will display section header previews as the user scrolls. 121686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Additionally, the user will be able to quickly jump between sections by 121786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * tapping along the length of the scroll bar. 121886f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 122186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param enabled true to enable fast scrolling, false otherwise 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 122339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollEnabled(final boolean enabled) { 122439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollEnabled != enabled) { 122539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollEnabled = enabled; 122639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 122739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 122839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 122939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 123039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 123139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 123239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 123339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerEnabledUiThread(enabled); 123439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 123539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 123639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1237447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette } 123839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 1239447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette 124039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerEnabledUiThread(boolean enabled) { 1241447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette if (mFastScroller != null) { 1242447cdf2c069a05d9f8b5aaa4269be43e8f5e1d89Alan Viverette mFastScroller.setEnabled(enabled); 124339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else if (enabled) { 124439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScroller = new FastScroller(this); 1245fb66415655c288be2ac2078cd0a5e20c7040266eAlan Viverette mFastScroller.setEnabled(true); 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 124726bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 1248b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette resolvePadding(); 124926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 125026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null) { 125126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette mFastScroller.updateLayout(); 125226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12540a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 125686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Set whether or not the fast scroller should always be shown in place of 125786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * the standard scroll bars. This will enable fast scrolling if it is not 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 125986f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * <p> 126086f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Fast scrollers shown in this way will not fade out and will be a 126186f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * permanent fixture within the list. This is best combined with an inset 126286f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * scroll bar style to ensure the scroll bar does not overlap content. 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 126486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @param alwaysShow true if the fast scroller should always be displayed, 126586f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * false otherwise 126620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 126720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 126820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 126939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void setFastScrollAlwaysVisible(final boolean alwaysShow) { 127039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (mFastScrollAlwaysVisible != alwaysShow) { 127139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (alwaysShow && !mFastScrollEnabled) { 127239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollEnabled(true); 127339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 127439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 127539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette mFastScrollAlwaysVisible = alwaysShow; 127639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette 127739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette if (isOwnerThread()) { 127839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 127939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } else { 128039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette post(new Runnable() { 128139bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette @Override 128239bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette public void run() { 128339bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette setFastScrollerAlwaysVisibleUiThread(alwaysShow); 128439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 128539bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette }); 128639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 128720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 128839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 128920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 129039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private void setFastScrollerAlwaysVisibleUiThread(boolean alwaysShow) { 129120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 129220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 129320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 129439bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette } 129520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 129639bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette /** 129739bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette * @return whether the current thread is the one that created the view 129839bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette */ 129939bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette private boolean isOwnerThread() { 130039bed695cecdbefc9fae785692fe468cd9007c35Alan Viverette return mOwnerThread == Thread.currentThread(); 130120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 130220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 130320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 130486f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is set to always show on this view. 130520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 130686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * @return true if the fast scroller will always show 130720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 130820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 130920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 1310b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette if (mFastScroller == null) { 1311b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled && mFastScrollAlwaysVisible; 1312b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 1313b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScroller.isEnabled() && mFastScroller.isAlwaysShowEnabled(); 1314b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 131520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 131620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 131720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 131820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 131926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null && mFastScroller.isEnabled()) { 132020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 132120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 132320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 132420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 132520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 132686f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * Returns true if the fast scroller is enabled. 132786f5e8956df3309eb212b66657da4d0bd4fe5773Alan Viverette * 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 1333b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette if (mFastScroller == null) { 1334b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScrollEnabled; 1335b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } else { 1336b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return mFastScroller.isEnabled(); 1337b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette } 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 134020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 134120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 134220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 134320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 134420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 134520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 134720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 134826bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette @Override 134926bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette public void setScrollBarStyle(int style) { 135026bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette super.setScrollBarStyle(style); 135126bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette if (mFastScroller != null) { 135226bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette mFastScroller.setScrollBarStyle(style); 135326bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 135426bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette } 135526bb253b4001b7d4d876656b0c6bd11b6aab4131Alan Viverette 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13570ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 13580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 1362b9f2722f6f32b275731fc7e4aeb367cdf9c30dd3Alan Viverette return isFastScrollEnabled(); 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 13760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 14140ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette mFastScroller.onScroll(mFirstPosition, getChildCount(), mItemCount); 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1422a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 14234e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14244e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14254e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14264e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14274e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1428d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1429d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1430d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1431d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14329c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14334e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1434d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1435d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14364e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14374e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14384e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14394e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14404e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14418a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14428a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14438a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14448a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14458a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14468a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14478a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14498a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14508a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1451fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1452fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1453fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 145480943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1455fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1456fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1457fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 145880943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1459fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1460a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1461a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1462a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1463a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1464a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 146548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 146648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 146748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1468a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1469a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1470fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1471a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1472a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1473a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1474a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1475a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1476a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1477fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1478a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1479a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1480a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1481a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1482a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1483a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 148448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14858a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14868a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14875b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 14885b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 14895b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 14905b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 14915b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 14925b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14935b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 14945b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 14955b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 14965b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 14975b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 14985b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 14995b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15005b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 15015b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 15025b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 15676bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1623a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16242614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1625f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 162614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1646a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16472614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1648f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 164943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 165043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 165114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 165243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 165343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 165443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 165543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 165614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1669a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 16702614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1671f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 167243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 167343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 167443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 167543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 167643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 167714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1689f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1690f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 16958fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1711f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1721e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1722e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1723e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1724e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1725e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1726e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1727e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1728e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1729e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1730e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1731e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1732e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1733e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1734e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1735e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 173699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17477becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17487becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17497becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17507becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17517becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17527becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 17537becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 17547becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 17557becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 17567becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 175999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 176099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 176199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 176299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 176399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 176499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1783a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1784a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17859a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17869a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17879a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17889a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 178914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17909a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17919a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17929a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17939a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17949a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 17959a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17962614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1798335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1799335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1800335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1801335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1816e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1825079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1827e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18442614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18452614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1846a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1847a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1848a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1849a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1850a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1856d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 18620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 190231986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow() && mAdapter != null) { 1903b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1904b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1905b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1906b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1907b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1908b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1927161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1929e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1935079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20000b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20010b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20020b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20080b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2059da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2060da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2061da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2062da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2063ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2064da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2065da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2066ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2067da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2068da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2071d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2072d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2073d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2074d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2079f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2080f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2081f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2082f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2083f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2084f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2085f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20860ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 20875db566f16a1b8f36e84a9be00cde40482d48466bAdam Powell if (mFastScroller != null && (mItemCount != mOldItemCount || mDataChanged)) { 20885db566f16a1b8f36e84a9be00cde40482d48466bAdam Powell mFastScroller.onItemCountChanged(mItemCount); 20892c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2090f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2104d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2105d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2106d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2107d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2108d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2109d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2110d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2111d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2117d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2118d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2119d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 222221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 222321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 222721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 22285fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceBegin(Trace.TRACE_TAG_VIEW, "obtainView"); 22295fade8c69aef621312232ef0647502d7a63990b9Romain Guy 223021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2233539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2234f9736d3b9aca08433382c18eb9157ab52c55ec2fAlan Viverette if (scrapView == null) { 2235f9736d3b9aca08433382c18eb9157ab52c55ec2fAlan Viverette scrapView = mRecycler.getScrapView(position); 2236539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2237539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22424213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22434213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22444213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22454213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2247079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 225121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2252a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 22531e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 22541e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Clear any system-managed transient state so that we can 22551e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // recycle this view and bind it to different data. 22561e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 22571e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 22581e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 22591e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 2260a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 22644213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22654213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22664213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22674213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22684213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2274aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2275aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2276aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2277aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2278aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2279aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2280aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2281aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2282aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2283aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2284aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2285aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2286aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2287aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2288c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2289c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2290c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2291c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2292b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2293b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2294b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2295c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2296c1d7e770e123adfa992d013fa294693d077cbc78alanv 22975fade8c69aef621312232ef0647502d7a63990b9Romain Guy Trace.traceEnd(Trace.TRACE_TAG_VIEW); 22985fade8c69aef621312232ef0647502d7a63990b9Romain Guy 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2302c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2303c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 230450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 230550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 230650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 230750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 230850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 230950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 231050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 231150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 231250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 231350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 231450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 231550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2316c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2317c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2318c1d7e770e123adfa992d013fa294693d077cbc78alanv 2319c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23205b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette onInitializeAccessibilityNodeInfoForItem(host, position, info); 2321c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2322c1d7e770e123adfa992d013fa294693d077cbc78alanv 2323c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2324c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2325fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2326fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2327fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2328fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2329c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23309c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2331c1d7e770e123adfa992d013fa294693d077cbc78alanv 23329c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23339c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2334c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2335c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2336c1d7e770e123adfa992d013fa294693d077cbc78alanv 23379c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23389c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2339fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2340fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2341fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2342c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2343c1d7e770e123adfa992d013fa294693d077cbc78alanv 2344c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 23459c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 23469c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 23479c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 23489c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23499c3e0e68260fe50456996d75304b73054cbde94aalanv } 23509c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2351fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23529c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23539c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23549c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23559c3e0e68260fe50456996d75304b73054cbde94aalanv } 23569c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2357fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2358fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2359c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2360c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2361fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2362fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2363fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2364c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2365c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2366fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2367c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2368c1d7e770e123adfa992d013fa294693d077cbc78alanv 2369fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2370c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2371c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2372c1d7e770e123adfa992d013fa294693d077cbc78alanv 23735b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette /** 23745b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * Initializes an {@link AccessibilityNodeInfo} with information about a 23755b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * particular item in the list. 23765b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * 23775b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param view View representing the list item. 23785b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param position Position of the list item within the adapter. 23795b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette * @param info Node info to populate. 23805b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette */ 23815b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette public void onInitializeAccessibilityNodeInfoForItem( 23825b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette View view, int position, AccessibilityNodeInfo info) { 23835b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette final ListAdapter adapter = getAdapter(); 23845b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == INVALID_POSITION || adapter == null) { 23855b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette // The item doesn't exist, so there's not much we can do here. 23865b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 23875b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 23885b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 23895b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (!isEnabled() || !adapter.isEnabled(position)) { 23905b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setEnabled(false); 23915b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette return; 23925b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 23935b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 23945b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (position == getSelectedItemPosition()) { 23955b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setSelected(true); 23965b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 23975b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } else { 23985b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 23995b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24005b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24015b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isClickable()) { 24025b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 24035b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setClickable(true); 24045b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24055b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 24065b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette if (isLongClickable()) { 24075b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 24085b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette info.setLongClickable(true); 24095b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24105b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette } 24115b2081dc41cccd76780a2cb4e9a973505c13446cAlan Viverette 2412079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2413079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2414079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2415079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2416079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2419e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2420e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2421e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2428a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2429079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2430079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 247120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 247220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 247320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 247420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 247520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 247620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 247720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 247820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 247920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 248020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 248120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 248220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 248320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 248420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 248520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 248620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 248720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 248820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 248920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 249020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 249120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 249220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 249320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 249420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 249520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2501d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 253074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2534079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2578079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2596df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2597df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2598df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2599df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2603079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2607ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2608ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2609ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2610ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2617df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2618df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2638079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2639079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2640079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2641079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2642079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2643079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2644079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2645079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2646079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2647079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2651079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2694e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2695e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2696e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2697e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2698e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2699e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27040e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 27050e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 27060e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 270982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 271082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 271182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 27126a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 27136a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 27146a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 27156a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 27166a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 271782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27241f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 27251f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 27261f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 272721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 272821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 272921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27310e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 27320e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 27339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 27340e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 273682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2737bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 273882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 273982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 274082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27411cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27421cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 27431cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 27441cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 27481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 27491cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 27501cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2751d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2752d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2753d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2754d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2755d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2756d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 27574032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2758d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2759d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2760d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2761d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2762d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2763d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2764d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2765d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2766d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2767d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2768d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2769d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2770a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2771d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2782670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2783670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2784670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2785670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2786670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 27874032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27884032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27894032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27920fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2796670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 280597566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28293a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 28303a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 28313a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 28323a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio if (mFastScroller != null) { 28333a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio mFastScroller.setScrollbarPosition(getVerticalScrollbarPosition()); 28343a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 28353a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 28363a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28521487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell @Override 28531487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell public void onCancelPendingInputEvents() { 28541487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell super.onCancelPendingInputEvents(); 28551487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPerformClick != null) { 28561487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPerformClick); 28571487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28581487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForTap != null) { 28591487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForTap); 28601487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28611487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForLongPress != null) { 28621487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForLongPress); 28631487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28641487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell if (mPendingCheckForKeyLongPress != null) { 28651487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell removeCallbacks(mPendingCheckForKeyLongPress); 28661487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28671487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell } 28681487466dc2ce14cccf0ff2bd2f824238aaa0044eAdam Powell 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 28760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 288229219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28898fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2895005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2896005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2897005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2898005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2899005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 29007890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 29017890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 29027890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 29037890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 29047890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 29057890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 29118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 29358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29588350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 29621e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 29631e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 29651e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2990fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2991fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2992fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2993fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2994fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2995fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2996fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2997fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2998fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2999fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 3000fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3001fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3002fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 3003fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3004fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3029df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 3030df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 3031df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 3032df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 3033df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 303524d36f592224d1316165f579bb0937df0bf42f7cMichael Wright if (KeyEvent.isConfirmKey(keyCode)) { 3036dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3037dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 3038dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3039df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 3040dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 3042dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 304445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 304545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 304645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 304745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 31078fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3118079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3119079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3120e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 317074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 317713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 317813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 317913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 318013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 320778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 321278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 321378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 322078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 322578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 325078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 325178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 325278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 325378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 325478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 325578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 325678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 325978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 326078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 326178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 326278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 326378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 326478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 326578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 326778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 326878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 326978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3270a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 327578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3276a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 328978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 329078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 329178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 329978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 330078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 330278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 330378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 330478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 330578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 330678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 330778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 330878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 330978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 331078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 331178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 331278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 331378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3314a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 331578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 331678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 331778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 331878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 331978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3320a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 332178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 332478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 332578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 332678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 33279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 33289d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 33299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 333078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 333178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33329d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 33339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 333478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 333578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 333678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 333778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 333878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 333978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 334078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 334178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 334278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 334378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 334478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 334578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 334678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 334778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 334878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 334978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 335178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33651e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33724032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33734032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33744032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 33780fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3388dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3389dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3390dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3391dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3392dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3393dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 33941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 33951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 33961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 33971fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 339831986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow()) { 339928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 340028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 340128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 340228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 340328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 340428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 340528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 341282f3495b146b267f3786997752cef25310176349Romain Guy 341313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 34178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 34188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 34198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 34208fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 34248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 34258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34279d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 34288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 34298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 34308fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3432e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 34348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 34358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3437e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 34398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 34408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 34418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 34428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 34438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 34448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 34458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 34468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 34478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 34488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 34508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3452fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 34538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 34548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 34558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 34568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 34578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 34588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 34598fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 34608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 34618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 34628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 34638fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 34648fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 34658fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 34668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 34678fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 34688fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 34698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 34708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 34718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3472fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3473e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3475e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3476e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3477e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3478e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 34793d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 34803d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 34813d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 34823d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3483e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3484e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3485e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3486e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3487e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3488e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 34893d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 34903d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3491e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3492e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 34933d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3494e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3495e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3496e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 34973d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3498e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 34993d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 35003d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 35013d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 35023d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 35033d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 35043d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 35053d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 35063d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 35073d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 35083d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 35093d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3510e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 35113d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3512e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3513e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3514e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3515e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35163d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3517e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3518e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35192585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 35206f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3521e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3522e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 35233d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3524e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 35256f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 35263d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3527e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3528e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3529e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3530e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3531e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35326f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3533b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN && mMotionPosition != INVALID_POSITION 3534b339cc5bcbafbc5b9cf184c6f87b4eb466386ea6Alan Viverette && performButtonActionOnTouchDown(ev)) { 35353d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3536e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3537e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3538e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3539e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3540e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3541e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3542e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3543e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3544e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3545e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3546e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3547e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3548e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3549e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3550e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3551e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 35528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 35538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3554e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 35558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 35568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 35578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 35588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 355974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 356074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 356174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 356274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 356374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 356474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 35653d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 35663d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 356774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 356874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 356974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 357074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 357174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 357274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 357374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 357474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 357574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 357674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 35778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 35798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 35808fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 35818fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3583e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3585e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3586e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3587e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3588e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3589e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3590e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3591e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 359274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3593e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3594e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3595e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3596e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 359774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 359874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 359974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 360074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 360174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 360274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3603e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 360474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 360574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 360674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 360874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 361074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 361174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3612e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 361374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 361474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 361574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 361674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 361774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 361874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 361974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 362074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 362174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 362274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 362374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 362474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 362774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 362874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 362974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 363074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 363174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 363274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 363374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 363474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 363574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 363674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 363731986b5b696c399b356c8819cb581441027bef36Adam Powell if (!mDataChanged && isAttachedToWindow()) { 363874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 363974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 364074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 364174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 364274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 364374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 364474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 364574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 364674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 364774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 364874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 364974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 365074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3653e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3654e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3655e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3656e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3657e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3658e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3660e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3661e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3662e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3663e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3664e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3665e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3666e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3667e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3668e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3669e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3670e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3671e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3672e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3673e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3674e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3675e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3676e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3677e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3678e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3679e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3680e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3681e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3682e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3683e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3684e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3685e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3686e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3687e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3688e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3689e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3690e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 36916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 36926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3693e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3694e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3695e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3696e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3697e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 36986198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3701e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3702e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3703e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3705e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3707e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3708e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3709e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3710637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3711e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3712e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3713e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3715e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3716e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3717e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3718e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3719e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3722e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3723e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3725e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3727e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3728e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3729e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3732e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3733e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 373474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3735e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3737e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3739e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3740e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3741e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3742e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3744e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3746e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3747e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3748e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 37494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3750e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 37514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3752e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3753e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3754e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3755e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3756e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 37574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3758e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 37594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 37609bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3761e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3762e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 37639bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3764e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3765e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3766e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3767e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 376874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3769e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3770e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3771e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3772e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 377374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3774e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3777e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3778e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3779e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3780e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3781e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37850a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 37860a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 37870a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 37880a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 37890a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 37900a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 37910a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 379633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 379733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 379833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 379933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 380033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 380133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 380233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 380333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3804275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 380533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 380633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 380733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 380833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 380933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 381033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 381133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 381233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 381333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 381433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 381533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 382207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 382307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 382407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 38279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3828a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 38309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3831a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 383707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 383807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 383907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38429d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 38439d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 38449d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3845e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3846a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 38489d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3849a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3850a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 385707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 385807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 385907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 386007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 386107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 386207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 386307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 386407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 386513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 386613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 386713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 386813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 386913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 387013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 387113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 387213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 387313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 387413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 387513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 387613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 387713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 387813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 387913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 388013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 388113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 388213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 388313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 388413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 388513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 388613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 388713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 388813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 388913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 389013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 389113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 389213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 389313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3895a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette public boolean onInterceptHoverEvent(MotionEvent event) { 3896a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptHoverEvent(event)) { 3897a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return true; 3898a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3899a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3900a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette return super.onInterceptHoverEvent(event); 3901a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette } 3902a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette 3903a709b37eab535180f41d2bb9d029244aa84ee1f6Alan Viverette @Override 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 39070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 39091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 39101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 39111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 391231986b5b696c399b356c8819cb581441027bef36Adam Powell if (!isAttachedToWindow()) { 391328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 391428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 391528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 391628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 391728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 391828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 391928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 39200ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptTouchEvent(ev)) { 39210ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 392679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 39334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 39344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 39354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 393779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 394913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 395013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 395179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 39524b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 39534b4f40f84e72579417604143e5f42115769649b8Romain Guy } 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 39602585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 39612585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 39622585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 39632585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 39642585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 39654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 396613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 396713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 396878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 397613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 39794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 398013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 39864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 39874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 39954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 39964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 39974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 39984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 39994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 40004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 40014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 40024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 40034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 40044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 4005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 40064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 40074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 40430046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4065d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 40668fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4067d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4068d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4069d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4071d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4072d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4073d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4074d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4075d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4076d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4077d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4078b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4079b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4080d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4081d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4082d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4083d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4084d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4085b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4086d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4087d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4088d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4089d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4090d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4091d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 409279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 409679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 40990b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 41031fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 41121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 41131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 41141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41211fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4124e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 41290b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4130044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4131044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41341fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41494032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 41504032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 41514032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 41524032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 41534032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41561fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 41590b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 41620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 41651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4168d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 417179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4172d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 417321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 417421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 417521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4176d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 41775e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 41785e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 41795e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 41805e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 41815e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4182d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4183d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4184d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4185d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 419079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 419179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4192d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4195d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4196d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4197d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4198d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4199d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 42017f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 42027f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 42037f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 42047f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 420579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 420679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 420779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 420879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4234d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4238d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 42479d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 42489d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42563cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 42573cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 42583cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 42639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 42651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4274d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4281637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4288044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4289044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4292044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4293044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4294044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4295044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4296044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4297044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4298044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4299044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4300044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4301044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4302044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4303044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 43061fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4307637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4318e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 43194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4324e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 43254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 433152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4332e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4333e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 43344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4339e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 43404032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43414032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4342aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4343aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4344161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4345aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4346aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4347aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4348161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4349aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4350aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4351aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4352e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4353e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4354e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4355e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4356e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4357e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4359e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43614bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43620061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43630061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 43640061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 43660061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 43670061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43700061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43790061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4381458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43831fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4386e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 43874032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43884032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4394aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4395aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4396161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4397aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4398aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4399aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4400161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4401aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4402aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4403aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4404e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4405e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4406e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4407e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4408e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4409e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4411e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 44124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44134bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 44140061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 44150061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44220061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44310061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44380061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4443458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4445458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4447458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44480061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4449458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44570061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 44604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4463e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4464e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4465322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4466322171b333a1c796fcc1428a96ea1d854a3881faErik } 4467322171b333a1c796fcc1428a96ea1d854a3881faErik 4468aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 44694032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 44704032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4471aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4472aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4473aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4474161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4475aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4476aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4477aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4478161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4479aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4480aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4481aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4482aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4483aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4484aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4485aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4486aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4487aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 44881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 44891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 44900061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4491e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4492e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4493e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4494e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4495e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4496e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4497371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4498e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44994bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 45000061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 45010061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 45020061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 45030061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4504e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4505e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 45060061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 45070b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4508e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4509e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4510e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4511371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 45124ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 45130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 45140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4515371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4516234a5715309ea74757780aff6123e3144efb5b69Adam Powell 45171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4518e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4519e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4520e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4521e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4522e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4523e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4524e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4525e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4526e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4527e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4528e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4529e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4530e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4531e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4532e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4533e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4534e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4535e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4536e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4537e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4538e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4539e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4540e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4541e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4542e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4543e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4544e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4545e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4546e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4547e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4548e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4549e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4550e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4551e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4552e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4553e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4554e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4555e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4556e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4557e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4558e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4559e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4560e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4561e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4562e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4563e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4564e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4565e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4566e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4567e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4568e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4569e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4570e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4571e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4572e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4573e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4577e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 45788fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 45824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 45874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 45890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45900b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 46031fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46051fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 46060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46097e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 46101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4617029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 46184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4619029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4620029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 46341fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 46357e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 46370b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 46440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4647458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 46580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 46590b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 46600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 46621fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 46631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46697e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 46701fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46947e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 46950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 46961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 47010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4707e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4708234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4709234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 47100b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4711234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4712234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4713e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4714371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4715234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4716234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4717e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4718371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4719e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 47204032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4721e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 47224032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 47234032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 47244032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 47254032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47264032252c997be9f5d013054dc23ace855007b3a5Adam Powell 47274032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 47284032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 47294032252c997be9f5d013054dc23ace855007b3a5Adam Powell 47304032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 47314032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 47320b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 47330b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 47340b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 47351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4736e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 47370b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 47380b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 47390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 47401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4741e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4742e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4743e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4744234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 47450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 47460b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 47470b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4748e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4749e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4750e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4751e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 47594bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 47604bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 47614bede9e425875542976a422222510fa4056a8339Romain Guy */ 47624bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 47634bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 47644bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 47654bede9e425875542976a422222510fa4056a8339Romain Guy } 47664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 47674bede9e425875542976a422222510fa4056a8339Romain Guy } 476821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 476921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 477021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 477121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 47724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 477321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 477421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 477521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 477621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 477721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 47784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 47794bede9e425875542976a422222510fa4056a8339Romain Guy /** 4780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4790322171b333a1c796fcc1428a96ea1d854a3881faErik 4791322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4792322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4793322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4794322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4795322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4796322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4797322171b333a1c796fcc1428a96ea1d854a3881faErik * 4798322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4799322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4800322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4801322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4802322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4803322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4804322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4805322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4806322171b333a1c796fcc1428a96ea1d854a3881faErik } 4807322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4808322171b333a1c796fcc1428a96ea1d854a3881faErik } 4809322171b333a1c796fcc1428a96ea1d854a3881faErik 4810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4811e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4812e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4813e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4814e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4815e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4816e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4817e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4818e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4819e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4820e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4821e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4822e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4823e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4824e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4825e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4826e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4827e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4828e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 48324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 48500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 48510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 48520b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 48530b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48574032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4858299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 48594032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 48604032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 48614032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 48624032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 48634032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 48644032252c997be9f5d013054dc23ace855007b3a5Adam Powell 486579303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 48664032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4867aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 48684032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 48694032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 48704032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 48714032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 48724032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 48734032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 48740046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 48750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4876299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4880499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4881499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4882499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4883499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4884499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4885499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4886499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4887499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4888499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4889499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4890499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4891499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4892499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4893499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4894499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4895499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4896499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4897499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4898499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4899499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4900499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4901499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4902499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4903499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4904499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4905499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4906499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4907499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4908499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4909499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4910499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4911499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4912499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4913499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4914499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 49169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 49190211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 49249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 49259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 49269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 49278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 49289d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 49299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 49309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 49319d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 49329d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 49339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 49349d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 49369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 49379d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49386dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 49396dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 49409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 49419d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49429d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49472f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * Scrolls the list items within the view by a specified number of pixels. 49482f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * 49492f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette * @param y the amount of pixels to scroll by vertically 4950ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @see #canScrollList(int) 49512f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette */ 4952ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette public void scrollListBy(int y) { 4953ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette trackMotionScroll(-y, -y); 4954ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 4955ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 4956ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette /** 4957ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * Check if the items in the list can be scrolled in a certain direction. 4958ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * 4959ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @param direction Negative to check scrolling up, positive to check 4960ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * scrolling down. 4961ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @return true if the list can be scrolled in the specified direction, 4962ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * false otherwise. 4963ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette * @see #scrollListBy(int) 4964ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette */ 4965ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette public boolean canScrollList(int direction) { 4966ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int childCount = getChildCount(); 4967ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette if (childCount == 0) { 4968ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return false; 4969ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 4970ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette 4971ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstPosition = mFirstPosition; 4972ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final Rect listPadding = mListPadding; 4973ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette if (direction > 0) { 4974ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int lastBottom = getChildAt(childCount - 1).getBottom(); 4975ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int lastPosition = firstPosition + childCount; 4976ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return lastPosition < mItemCount || lastBottom > getHeight() - listPadding.bottom; 4977ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } else { 4978ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette final int firstTop = getChildAt(0).getTop(); 4979ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette return firstPosition > 0 || firstTop < listPadding.top; 4980ba299063348e8396c1ce63c8fcbf9ee69c5be266Alan Viverette } 49812f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette } 49822f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette 49832f3317a06dd4d39298dc3fd2bb8a4d36a5762e03Alan Viverette /** 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5002bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 5003bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 5004bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 5005bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 5006bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 5007bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 5008bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 5009bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 5010bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 5011bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 5013bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 5014bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 5033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 5034bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 5035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 5036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 5037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 5039bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 5040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 5041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 5042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 50440a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 50450a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 50460a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 50470a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50490a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 5050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 5051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5055029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 5056029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 5057029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 5058029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 5061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 5064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 50678c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 50688c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 50698c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 50708c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 5072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 5074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 50791e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // The view will be rebound to new data, clear any 50801e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // system-managed transient state. 50811e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 50821e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 50831e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 5084079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 50898c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 50908c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 50918c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 50928c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 5094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 5096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 5099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 51021e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // The view will be rebound to new data, clear any 51031e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // system-managed transient state. 51041e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (child.isAccessibilityFocused()) { 51051e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette child.clearAccessibilityFocus(); 51061e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 5107079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 5119539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 5120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5121539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 51229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 51239d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 51249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 51251fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 51269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 51279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 5131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 5132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 51334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5139029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 51402a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 51412a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5142079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5143079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5144079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5145079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5146079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5147079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 51482a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5149079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5150079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5151029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5152029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 51564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5192ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5193ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5194ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 52234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 52534e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 52548d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 52558d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 52564e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 52578d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5258becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5259becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5260becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 52614e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 52628d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 52634e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 53594032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 53604032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 53614032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 53683c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 537914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 538014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 538114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 538214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 538314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 538414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 538514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 538614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 538714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 538814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 538914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 539014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 539114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 539214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 539314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 539414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 539514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 539614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 539714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 539814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 539914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 540014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 540114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 540214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 540314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 540414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 540514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 540614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 540714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 540814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 540914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 541014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 541114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 541214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 541314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 541414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 541514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 541614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 541714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 541814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 541914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 542014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 542114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 542214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 542314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5427ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5428ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 543014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 543114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 543214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5434539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5435539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5436539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 543714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 543814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5445e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54470785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5450da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5451da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5452da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5453da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5454da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5455da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 54560785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5457ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 54580785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 54590785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5460ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5461ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 54620785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 54630785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 54640785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 54650785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 54660785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 54670785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 54680785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5561e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5562079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 556643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 556743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 556843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 556943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 557043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 557143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 557243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 557343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 557443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 557543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 557643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 557743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 557843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 557943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 558043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 558124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 558243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 558343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5587d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 55994df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5600b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5606b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 561024443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5613b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56594e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 56604e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 56614e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 56624e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 56634e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 56644e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 56654e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 56684e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 56694e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5690b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 570683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 57078d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 57088d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5709b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5710b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5711b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5712b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 571383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 571483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 571583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 571683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 571783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 571883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5724cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5728b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5733105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5755b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5756b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5757b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5758b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5759c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 57601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 57611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 5762f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mPublicInputConnection = new InputConnectionWrapper(outAttrs); 57631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5764f69913056b8c6000ff0306573a97971702e8d35aRomain Guy outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 57651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 57661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5767c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5768c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5769b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 57700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5771f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private class InputConnectionWrapper implements InputConnection { 5772f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private final EditorInfo mOutAttrs; 5773f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection mTarget; 5774f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5775f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public InputConnectionWrapper(EditorInfo outAttrs) { 5776f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mOutAttrs = outAttrs; 5777f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5778f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5779f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection getTarget() { 5780f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) { 5781f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5782f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5783f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget; 5784f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5785f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5786f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5787f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean reportFullscreenMode(boolean enabled) { 5788f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since it is 5789f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the "real" one the IME is talking with. 5790f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.reportFullscreenMode(enabled); 5791f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5792f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5793f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5794f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performEditorAction(int editorAction) { 5795f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // The editor is off in its own window; we need to be 5796f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the one that does this. 5797f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (editorAction == EditorInfo.IME_ACTION_DONE) { 5798f69913056b8c6000ff0306573a97971702e8d35aRomain Guy InputMethodManager imm = (InputMethodManager) 5799f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5800f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (imm != null) { 5801f69913056b8c6000ff0306573a97971702e8d35aRomain Guy imm.hideSoftInputFromWindow(getWindowToken(), 0); 5802f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5803f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return true; 5804f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5805f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return false; 5806f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5807f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5808f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5809f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean sendKeyEvent(KeyEvent event) { 5810f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since the filter 5811f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // text view may not be shown in a window so has 5812f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // no ViewAncestor to dispatch events with. 5813f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.sendKeyEvent(event); 5814f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5815f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58160ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5817f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextBeforeCursor(int n, int flags) { 5818f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5819f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextBeforeCursor(n, flags); 5820f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5821f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58220ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5823f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextAfterCursor(int n, int flags) { 5824f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5825f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextAfterCursor(n, flags); 5826f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5827f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58280ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5829f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getSelectedText(int flags) { 5830f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5831f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getSelectedText(flags); 5832f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5833f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58340ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5835f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public int getCursorCapsMode(int reqModes) { 5836f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5837f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getCursorCapsMode(reqModes); 5838f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5839f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58400ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5841f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5842f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().getExtractedText(request, flags); 5843f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5844f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58450ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5846f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5847f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().deleteSurroundingText(beforeLength, afterLength); 5848f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5849f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58500ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5851f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingText(CharSequence text, int newCursorPosition) { 5852f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingText(text, newCursorPosition); 5853f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5854f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58550ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5856f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingRegion(int start, int end) { 5857f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingRegion(start, end); 5858f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5859f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58600ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5861f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean finishComposingText() { 5862f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget == null || mTarget.finishComposingText(); 5863f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5864f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58650ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5866f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitText(CharSequence text, int newCursorPosition) { 5867f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitText(text, newCursorPosition); 5868f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5869f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58700ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5871f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCompletion(CompletionInfo text) { 5872f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCompletion(text); 5873f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5874f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58750ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5876f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCorrection(CorrectionInfo correctionInfo) { 5877f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCorrection(correctionInfo); 5878f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5879f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58800ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5881f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setSelection(int start, int end) { 5882f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setSelection(start, end); 5883f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5884f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58850ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5886f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performContextMenuAction(int id) { 5887f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performContextMenuAction(id); 5888f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5889f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58900ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5891f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean beginBatchEdit() { 5892f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().beginBatchEdit(); 5893f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5894f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 58950ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5896f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean endBatchEdit() { 5897f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().endBatchEdit(); 5898f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5899f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59000ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5901f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean clearMetaKeyStates(int states) { 5902f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().clearMetaKeyStates(states); 5903f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5904f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59050ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5906f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performPrivateCommand(String action, Bundle data) { 5907f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performPrivateCommand(action, data); 5908f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5909f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5910f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5911b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5912b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5913b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5914b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5915b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5916b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5917b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5918b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 59190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5920b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 5927f69913056b8c6000ff0306573a97971702e8d35aRomain Guy PopupWindow p = new PopupWindow(getContext()); 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5931f69913056b8c6000ff0306573a97971702e8d35aRomain Guy p.setContentView(getTextFilterInput()); 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5937d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 59409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5946f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private EditText getTextFilterInput() { 5947f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTextFilter == null) { 5948f69913056b8c6000ff0306573a97971702e8d35aRomain Guy final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5949f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter = (EditText) layoutInflater.inflate( 5950f69913056b8c6000ff0306573a97971702e8d35aRomain Guy com.android.internal.R.layout.typing_filter, null); 5951f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // For some reason setting this as the "real" input type changes 5952f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the text view in some way that it doesn't work, and I don't 5953f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // want to figure out why this is. 5954f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5955f69913056b8c6000ff0306573a97971702e8d35aRomain Guy | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5956f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5957f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.addTextChangedListener(this); 5958f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5959f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTextFilter; 5960f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5961f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 59649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 5967f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getTextFilterInput().setText(""); 59689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 59779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 59849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 598624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 599143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 60001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60028fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 60081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 60091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 6013f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (isTextFilterEnabled()) { 6014f69913056b8c6000ff0306573a97971702e8d35aRomain Guy createTextFilter(true); 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 60199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 60231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 60279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 60299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 60309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 60339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 60411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 60429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 60459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 60499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 60509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 60519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 60529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6056aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 6057aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 6058aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 6059aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 6060aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 6061aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 60629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 60639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 60739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 60839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 60849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 61075be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 61085be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 61095be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 61105be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 61115be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 611652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 611752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 611852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 611952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 612052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 612152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 612252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 612352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61327b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 61339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 61349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 61499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 61509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 615113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 6155c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 61599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 6167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 6168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 6169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 6170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6174499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6175499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6176499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6177499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6178499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 61799b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 61809b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 61813ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 61823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 61833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 61843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 61853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 61863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 61873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 61889b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 61892148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 61909b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6191499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6192335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 6193335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 6194335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 6195499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6196499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6197499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6198a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 61990ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6200a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 62010ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6202a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 6203a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 6204a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6205a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6206a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 6207a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 6208a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6209a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6210a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6211a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6212a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 62132148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 62142148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 62152148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 62168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 62172148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 62182148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 62192148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 62202148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 62212148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6222499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6223499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 62248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 622516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6226499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6227499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 62282148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 62292148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 62302148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 62312148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 623216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6233fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6234fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 623516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6236499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 623716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6238499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6239499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6240499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6241499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6242499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 62438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6244499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6245fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6246fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6247fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6248fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6249fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6250499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6251499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6253b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6254b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6255b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6256b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6257b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6258b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6259b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6260b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6261b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6262b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 62749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6277b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6278b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6279b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6280b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6281b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6282b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6283b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6284b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6285b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6286b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6287b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6288b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6289b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6290b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6291b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6292b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6293b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6294b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6296f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6297f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6298f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6299f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6300f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6301f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6302f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6303f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6304f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6305f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6306f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6307f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6308f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6309f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6310f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6311f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6312f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6313f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6314f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6315f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6316f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6317f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6318f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6319f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6320f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6321f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6322a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6323a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6324a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6325a798170f2abe198f806b12dd904830bc25257525Adam Powell 63268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6327f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6328f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6329f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6330f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6331f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6332f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6333f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6334f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6335f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6337f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6338f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6339f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6340f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6342f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6343f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6344f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6345f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6347f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6348f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6349f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6350f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6351f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6352f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6353f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6354f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6355f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6356f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6357f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6358f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6359f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6360f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 63618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6362f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6363f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6364f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6365f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6366f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6367f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6368f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6369f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6370f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6371f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6372f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6373f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 63759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 63779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 63809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6381bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 63829bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 63839bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 63849bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63874df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 63884df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 63894df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 63904df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 63914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 63924df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6393bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 63944df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 63954df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 63960bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 63970bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 63980bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 63990bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 64000bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 64010bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 64020bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 64030bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6404bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 64050bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 64060bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6407079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6408079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6409079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6410079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6411079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6412079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6413079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6414539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6415539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6416539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6417539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6418539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 64339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 64349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 64589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 64599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 64609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 64619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 64629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 64649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 64659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 64679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 64689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 64719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 64739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 64769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 64779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 64789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 64799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 64819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 64869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 64889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 64909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6491539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6492539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6493539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6494728713258ffef4df053b85e0a3488334cbcba24cChet Haase private LongSparseArray<View> mTransientStateViewsById; 6495539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 64979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 64989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6510f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6511f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6512f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6513f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6514f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6515f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6516f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6517f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6518f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6519f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6520f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6521f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6522f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6523f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6524f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6525f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6526f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6527539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6528539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6529539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6530539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6531539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6532539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6533728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6534728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int count = mTransientStateViewsById.size(); 6535728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < count; i++) { 6536728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.valueAt(i).forceLayout(); 6537728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6538728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6539f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 65400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 65419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 65429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 65439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 65479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 65499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 65519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 65529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 65539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 65549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 65579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 65589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 65599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 65609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 65619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 65629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6565539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6566539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6567539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6568728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6569728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6570728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 65719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 65779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 65789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 65799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 65819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 65829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 65839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 65859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6586f69913056b8c6000ff0306573a97971702e8d35aRomain Guy //noinspection MismatchedReadAndWriteOfArray 65879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 65889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 65899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 65909c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 65919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 65929c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 65939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 65949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 65954df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 65969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 66029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 66039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 66049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 66059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 66069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 66089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 66099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 66109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 66119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 66129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 66139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 66149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 66169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6618539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6619728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6620728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(position); 6621728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViewsById.get(id); 6622728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.remove(id); 6623728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6624539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6625728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews != null) { 6626728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int index = mTransientStateViews.indexOfKey(position); 6627728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (index >= 0) { 6628728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViews.valueAt(index); 6629728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.removeAt(index); 6630728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6631728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6632539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6633728713258ffef4df053b85e0a3488334cbcba24cChet Haase return null; 6634539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6635539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6636539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6637539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6638539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6639539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6640539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6641539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6642539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6643728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6644728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6645728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6646539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6647539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 66489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 66509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 66529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6653079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 66549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 66559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 66569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6657079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 66589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 66619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6664d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * Puts a view into the list of scrap views. 6665d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * <p> 6666d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * If the list data hasn't changed or the adapter has stable IDs, views 6667d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * with transient state will be preserved for later retrieval. 66689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 66699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 6670d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette * @param position The view's position within its parent 66719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6672079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 6673d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 66749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 66759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 66769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6678539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6679539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 66801e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Remove but don't scrap header or footer views, or views that 66811e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // should otherwise not be recycled. 6682d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette final int viewType = lp.viewType; 6683d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (!shouldRecycleViewType(viewType)) { 6684d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette return; 6685d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6686d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6687d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.dispatchStartTemporaryDetach(); 6688d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette 6689d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // The the accessibility state of the view may change while temporary 6690d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // detached and we do not allow detached views to fire accessibility 6691d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // events. So we are announcing that the subtree changed giving a chance 6692d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav // to clients holding on to a view in this subtree to refresh it. 6693d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav notifyViewAccessibilityStateChangedIfNeeded( 6694d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav AccessibilityEvent.CONTENT_CHANGE_TYPE_SUBTREE); 6695d4bdd6befa4e3cc29bedaaea3678c1075e0b7d24Svetoslav 6696d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Don't scrap views that have transient state. 6697539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6698d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (scrapHasTransientState) { 6699d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mAdapter != null && mAdapterHasStableIds) { 6700d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the adapter has stable IDs, we can reuse the view for 6701d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // the same data. 6702d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViewsById == null) { 6703d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById = new LongSparseArray<View>(); 6704d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6705d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViewsById.put(lp.itemId, scrap); 6706d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else if (!mDataChanged) { 6707d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // If the data hasn't changed, we can reuse the views at 6708d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // their old positions. 6709d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mTransientStateViews == null) { 6710d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews = new SparseArray<View>(); 6711d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 6712d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mTransientStateViews.put(position, scrap); 6713d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6714d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette // Otherwise, we'll have to remove the view and start over. 6715539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6716539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6717539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6718539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6719539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6720d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6721d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mViewTypeCount == 1) { 6722d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mCurrentScrap.add(scrap); 6723d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } else { 6724d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mScrapViews[viewType].add(scrap); 67259b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 67269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67271e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette // Clear any system-managed transient state. 67281e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette if (scrap.isAccessibilityFocused()) { 67291e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette scrap.clearAccessibilityFocus(); 67301e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette } 67311e51cc7e71d30626a8e7f4311883fed8ac3107b7Alan Viverette 6732d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette scrap.setAccessibilityDelegate(null); 67339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6734d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette if (mRecyclerListener != null) { 6735d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette mRecyclerListener.onMovedToScrapHeap(scrap); 6736d44696c4cfdda1e7e4e10a21b68f54ce5a4a459dAlan Viverette } 67379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6741539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6742539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6743539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6744539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6745539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6746539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6747539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6748539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6749539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6750539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6751539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6752539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6753539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6754539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 67559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 67569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 67579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 67589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 67599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 67609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 67619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 67639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6764a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 67659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 67669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6767079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6768079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6769079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 67709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 67729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6773539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6774539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 67759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6776b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && 6777539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 67789b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 67799b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6780539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6781728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6782728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6783728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6784728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6785728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(mFirstActivePosition + i); 6786728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(id, victim); 6787728713258ffef4df053b85e0a3488334cbcba24cChet Haase } else { 6788728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6789728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6790728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6791728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(mFirstActivePosition + i, victim); 6792539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6793539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 67949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 67959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 67989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 67999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6800a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6801079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 68029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 68039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6804c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 68059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 68069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 68079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 68129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 68159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 68169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 68179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 68189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 68199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 68209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 68219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 68229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 68239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 68249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 68259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 68269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 68279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 68289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 68299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6831bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6832bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6833bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6834bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6835bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6836bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6837bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6838bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6839bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6840bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6841728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6842728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < mTransientStateViewsById.size(); i++) { 6843728713258ffef4df053b85e0a3488334cbcba24cChet Haase final View v = mTransientStateViewsById.valueAt(i); 6844728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (!v.hasTransientState()) { 6845728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.removeAt(i); 6846728713258ffef4df053b85e0a3488334cbcba24cChet Haase i--; 6847728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6848728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6849728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 68509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 68529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 68539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 68549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 68559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 68569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 68579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 68589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 68599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 68609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 68619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 68629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 68639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 68649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 68669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 686752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 686852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 686952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 687052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 687152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 687252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 687352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 687452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 687552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 687652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 687752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 687852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 687952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 688052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 688152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 688252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 688352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 688452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 688552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6886266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 688752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 688852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 688952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 689052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 689152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 689252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 689352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 689452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 689552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 689652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 689752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 689852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 689952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 69009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6901079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6902079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6903079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6904079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6905079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6906079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6907079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6908079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6909079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6910079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6911079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6912079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6913079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6914079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6915079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6916079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6917079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6918079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 69199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6920